How To Use Perturb In A Sentence

This 31-day period of perturbations probably has a great deal more to do with things that go bump in the night than many care to admit in front of their friends and family.
What I find highly ironic and, indeed, perturbing, is that U.S. trade laws have in their application proven much more effective in inhibiting legitimate, cross-border, long-standing supplier-customer transactions carried on within a Canada-U.S. free trade environment than they have in dealing with these "dump and jump" boatloads of predatory imports. Free Trade With the U.S.Only in a Dream World
I was perturbed at his apparent immaturity.
Other: It's not nonperturbative quantization of diffeomorphism-invariant gauge theory. Slimbo-Poll: It's Not Rocket Science
He is also perturbed by the fact that no meaningful debate is being made on this illogical act of film censorship.

Fifteen years later when I revisited the issue, I was still perturbed.
He was particularly perturbed that he had no recollection of even seeing the wine, let alone tasting it.
NCIS was perturbed at the end of last season, and the pendulum is slowly returning to status quo. Prone and supine : Bev Vincent
Also the pleasures of the eye consist in a certain equality of colour: for light, the most glorious of all colours, is made by equal operation of the object; whereas colour is (perturbed, that is to say) unequal light, as hath been said chap. II, sect. The Elements of Law Natural and Politic
The failure of a laboratory's computer system has the potential to disrupt work flow, compromise business interests, and delay or perturb patient care.
It felt classy and utterly imperturbable - the sort of place where the band might play Stormy Weather in a raging typhoon.
These data are consistent with the notion that the perturbation to the system due to the UV light pulse was minimal to the overall function of the mitochondria.
Un agent provocateur est une personne agissant secrètement pour le compte d'un groupe mais apparaissant comme le membre d'un autre pour perturber son activité incitant délibérément, par ses propos et son comportement, à commettre des actes sanctionnés par la loi ou par l'opinion publique Wikipedia. Agent provocateur, provoquer, provocant/e
Again, sources backing up this information are minimal, but Willerbang seemed unperturbed by the sudden departure of his friend and mentor.
The life-like bambini appeared unperturbed, their faces calm and angelic, their wide eyes turned to the sky.
He is perturbed to see her. The Sun
But how do mass extinctions perturb these systems in the first place?
All through the winter, the perturbation of the little huckster's mind remained unallayed; but there came a day in early spring which set his questionings at rest. The Golden Shoemaker or 'Cobbler' Horn
After a warm reception from my inmate brethren, today, I found out that one yahoo can cause considerable perturbation.
The rift with the rest of the ECB's council deepened in September when, in an interview with Bloomberg, Mr. Weber pre-empted the policy decisions of the council's next meeting, something that provoked a memorable put-down from the normally imperturbable Mr. Trichet. Was Weber Sacrificed for the Euro?
A theoretically optimal system that blows up at the slightest perturbation is not a great real-world solution. Efficient Enough to Be Regulated?
I have heard, that if these sublime genuises are wakened from their reveries by the appulse of external circumstances, they start, and exhibit all the perturbation and amazement of cataleptic patients. Letters for Literary Ladies: To Which is Added, An Essay on the Noble Science of Self-Justification
Postremo illud affectus omnes atque ipsum appetitum rebellione infecit; haec renovata sanctitas in ordinem cogit perturbatas affectiones, et ipsam rebellem concupiscentiam dominio spoliat, et quasi sub jugum mittit. Pneumatologia
Still, the process, while far less perturbing than Grandma Moses feeling me up, was still a bit unnerving as I am naturally bashful when it comes to taking my clothes off in front of people. The DC Damsel: Lifting the Ladies: Adventures in Bra-Fitting
stellar passings can perturb the orbits of comets
That much," she waspishly informed an imperturbable Myst, curled comfortably on a chair," is impossible to deny. A RAKE'S VOW
In this way, we see that the two systems engage in an exchange, a feedback loop of information and effect, which serves to further change or perturb each system.
The odyle, as has been already stated, rapidly responds to surrounding magnetic conditions, and to the vibrations of surrounding Bodies, and to none more powerfully than the etheric perturbation caused by combustion -- indeed, to light of any kind. How to Read the Crystal or, Crystal and Seer
He wasn't the least bit perturbed by the meager audience, nor was he disturbed by the obvious pastoral snub.
With a good helping of incomers, who are less perturbed by these kind of events, the atmosphere will be less fraught.
Perturbations in the orbit of the planet Uranus led to the discovery of Neptune in 1846.
A fieldworker can learn more from perturbing the system than from pretending to be an invisible fly on the wall.
His distaste for big inert words - words like omniscient, impassable and imperturbable, which he finds other theologians using to describe God - inspires his own desire for accessibility.
Her sudden appearance did not seem to perturb him in the least.
The fracture surfaces form acute and obtuse angles with the outer surface of the bone, and they exhibit no perturbations caused by split lines.
The pipette was attached to the test tank 2 cm above the water surface, creating a perturbation on the surface when water was dripped into the aquarium.
And it is a youth, standing tiptoe upon the earth, now waiting in unperturbed ease, now searching with unbridled zeal, who is lover and mystic. The Kempton-Wace Letters
They can see the visitors milling about but don't appear to be in the least bit perturbed. Times, Sunday Times
He's also perturbed by the way his daughters' peers dress.
Direction Informatique me téléphone pour me demander comment la venue de la génération Net sur le marché du travail, risque de perturber les habitudes des entreprises (son article devrait paraître plus tard cette semaine). Michelle Blanc, M.Sc. commerce électronique. Marketing Internet, consultante, conférencière et auteure
A replacement Stagecoach bus arrived at the scene shortly afterwards and an unperturbed Mr Hill completed the journey with his passengers.
It frequently happens that the contortions or displacements due to motion are seen to affect a single line belonging to a particular substance, while the other lines of _that same substance_ remain imperturbable. A Popular History of Astronomy During the Nineteenth Century Fourth Edition
Suppose thou beholdest her in a frosty morning, in cold weather, in some passion or perturbation of mind, weeping, chafing, etc., riveled and ill-favored to behold .... An Odd Sort of Popular Book
The sole sign of perturbation was in her hurried breathing.
a revelation that was most perturbing
Now some of you may be a little bit perturbed. Christianity Today
Now the younger monk was perturbed by his friend's conduct because their monastic code forbade them touching a woman, much less giving her a piggyback ride.
Because these systems include redundant components, even strong perturbations may lead to only a subtle phenotype.
They can see the visitors milling about but don't appear to be in the least bit perturbed. Times, Sunday Times
In fact the major perturbation, producing about 99.99 percent of the variation in the lunar orbit, is due to the large attraction of the Sun.
Meanwhile, as the heavens darkened, the seas began to boil, and a voice tore through the clouds shouting, in deep, stentorian tones to one and all: "It was a Mistake!", campaign offices described themselves as "unperturbed". Founder Of Group Palin Courted Professed "Hatred For The American Government"; Cursed "Damn Flag"
'We'll be in touch, Delia -' Delia suddenly looked perturbed. YESTERDAY'S SHADOW
My unexpected arrival didn't perturb him in the least.
Earlier approaches started with an elliptic orbit of the Moon round the Earth, assuming the Sun had no effect, then perturbing the orbit to take account of the gravitation of the Sun.
One who is not the source of annoyance to the world, one who never feels offended with the world, one who is free from both delight and anger, perturbation and fear, ‘that devotee is dear to Me’.
Much of the audience is perturbed by the portrayal here, but the setting quickly changes to the next day at school.
These estimates are based on independent observations and widely varying physical phenomena: the heat balance of a warming planet; the feedbacks involved in short-term radiative perturbations; and quasi-equilibrium climate states under different boundary conditions. RealClimate
Tornadoes, downbursts, and straight-line winds arising from severe thunderstorms have long perturbed the forests of southeastern Arkansas, producing dramatic localized effects.
Her sudden appearance did not seem to perturb him in the least.
Sometimes a small perturbation of a system could cause it to switch from one pattern to another.
Under real crystallization conditions, potential phase perturbants, such as proteins, native membrane lipids, detergents, and precipitants, will be present.
The first hyperpolarizability and molecular frontier orbit properties of barbituric acid derivatives are studied at HF/6-31G level by coupled perturbed Hartree-Fock(CPHF) method.
Original caption: “The frequency distribution of simulated climate sensitivity using all model versions (black), all model versions except those with perturbations to the cloud-to-rain conversion threshold (red), and all model versions except those with perturbations to the entrainment coef ﬁ cient (blue).” AGU Day 3 part C: How good are predictions from climate models? | Serendipity
She is very perturbed about her husband's health.
They passed on unhurt but slightly perturbed. Times, Sunday Times
The chief policeman went on talking with the Brooks Brothers clerk, seemingly unperturbed by the size and mood of the mob.
Given a closed Riemannian manifold M, we construct a suitable class of perturbations to achieve Morse-Smale transversality for the heat equation.
By their calculations, it wouldn't take much to perturb our own system, either.
Meanwhile, as the heavens darkened, the seas began to boil, and the voice tore through the clouds shouting, in deep, stentorian tones to one and all "It was a Mistake!", campaign offices described themselves as "unperturbed". The Palin Meltdown in Slo-Mo
She was one of those imperturbable people who never get angry or upset.
Just perturbance at another worthless uttering from a delusional campaign apparently meriting yet another "camp hillary says ..." post. Harold Ickes: Hillary Will Need "A Few" More Super-Dels Than Obama To Catch Him
It used to kind of perturb me the way she's say that. CNN Transcript Jun 10, 2008
The airport quality inn for one of the perturbing bay sententiously disjointedly hygrometer hedgerow, bristlegrass doojigger, has not truthfully immaculate a hamartia of symphony but that all scouser be resurgent. Rational Review
She blinked and looked somewhat perturbed.
In these mixtures, where lysozyme is active and stable, we followed how the stabilizing action of glycerol is perturbed by the plasticizing effect of water molecules.
The effect probably helps flyers regain equilibrium when hit by gusts of wind, providing a natural stabilizer that engages before their brains can react to a perturbance, said Hedrick. Wired Top Stories
NKOTBSB, a perturbing amalgamation of 90s boybands New Kids on the Block and the Backstreet Boys, are also peddling their ballads on a global tour this spring. Stone Roses, Trainspotting and the grunge look: the 90s revival is here
He seems unperturbed that it will not be in the shops before the holiday season. Times, Sunday Times
It was difficult in several instances for non-Navajos to instruct the recruits in Marine Corps activities; a few marine instructors were unable to cope with the typical Indian imperturbability .
The challenge is to perturb the system in a cell specific way to examine the behavioral consequences.
If therefore it be inferred that A J D = a J d. i'his inference is fM to he made ex sequo perturbate. i6S The ELEMENTS BookV. Instructions given in the drawing school established by the Dublin society
Perturbations of photosynthetic metabolism can be induced by many biotic and abiotic factors.
All other markers are subsequently placed in the bin into which they best fit by statistical procedures without perturbing the overall map order.
UVC might lead to membrane perturbation resulting in activation of a phospholipase that releases linolenic acid, the precursor for oxylipin synthesis.
But the next step is the mannequins, that imperturbable army of shopwindow-style dolls. Times, Sunday Times
The ceaseless ringing in my ear continued throughout today and, as a result, I've felt more than a little perturbed.
The chief policeman went on talking with the Brooks Brothers clerk, seemingly unperturbed by the size and mood of the mob.
Sed quoniam firmioribus remediis nondum tempus est et eam mentium constat esse naturam, ut quotiens abiecerint ueras falsis opinionibus induantur ex quibus orta perturbationum caligo uerum illum confundit intuitum, hanc paulisper lenibus mediocribusque fomentis attenuare temptabo, ut dimotis fallacium affectionum tenebris splendorem uerae lucis possis agnoscere. The Theological Tractates and The Consolation of Philosophy
The neoclassical view starts from a paradigm of competitive equilibrium and considers shocks to the system and perturbations of cost and demand.
This perturbing mix of architecture and the body is typical of Hatoum, renowned for her eerie transformations of familiar household stuff into potential instruments of torture. This week's new exhibitions
I was particularly perturbed because, in the accompanying brochure, the drink was bright blue.
In the end, we derive a perturbation bound which does not depend on the perturbation solution for the unique solution.
The interplanetary and relativistic corrections can be shown, to lowest order in perturbation theory, to result in the major axes of the planetary orbits precessing in space. Matthew Yglesias » The Trouble With Common Sense
We realise we might be the youngest people here - many of the clientele enjoyed the Seventies as they happened - but we are unperturbed.
Whether through simple data-piracy, or else by a more complex development of actual rapport with chaos, the Web - hacker, the cybernetician of the TAZ, will find ways to take advantage of perturbations, crashes, and breakdowns in the Net (ways to make information out of "entropy"). Home
He agreed to furnish dogs on a given date, but no sooner had Floyd Vanderlip turned his toes up-creek, than Charley hied himself away in perturbation to Loraine Lisznayi. Jack London Play:The Scorn of Women
Naturally, Critser found all this perturbing but, like most people, he was inured to the daily diet of doom and gloom fed to him by the press - all the more so since he belongs to its massed ranks himself.
What perturbs me is how we have come to accept all this.
But still we do need a cutoff (to be differentiated from the scale at which the theory is defined) to handle UV divergences, for example in perturbative QCD. Richard Feynman Needs His Orange Juice
If this works then the perturbative Killing fields are on comoving frames, and the difference between them from region to region might then lead to inequivalent vacua from which some of these types of analyses might be performed. Everything You Ever Wanted to Know About Quantum Mechanics, But Were Afraid to Ask
I'm a little bit perturbed. The Sun
In fact, it would be in deep trouble if it was relying on the utterly solid, sweet-natured and imperturbable country boy for dramatic tension.
I should have thought, as an American, that you'd be more perturbed, "he added rather severely. LEFT, RIGHT AND CENTRE
The unperturbed swans, ponderously wallowing in the shallows.
At those values, the quartic self-interaction would be very strong and would be running even stronger very quickly, eventually falling into the "Landau pole" trap of a divergent interaction that probably makes the theory inconsistent as a separate theory (and surely useless in its perturbative form). The Reference Frame
She was not perturbed by the low attendance, insisting that most people on the street supported her position.
The passivity of passions and the stirrings of perturbations may initially seem at odds with one another: the one at rest, the other in motion; the one inactive, the other driving.
In some problems in quantum transition, time-dependent perturbation theory gives the first order approximation of transition probability amplitude.
I am getting a bit perturbed with all the posturing and spinning about the patch out there in CME land. Thoughts on the Contraceptive Patch and Blood Clot Risks
A bad argument is like a bad marriage, marked by rage, perturbation, bewilderment, and stubbornness.
苂ypto Consul eorum abesset, Consul illic Gallicus existens, Vento nuncupatus, quamuis ante h鎐 tempora ne manus in Anglos mitteret mandatum nostrum fuerit datum, Angli sub vexillo et tutela nostra sunt inquiens, mandatum C鎠areum vili existimans, non cessauit perturbare Anglos. The Principal Navigations, Voyages, Traffiques and Discoveries of the English Nation
QCD tells you explicitly how to evolve these non perturbative functions, but that has to be done with an approximation. How low is low? « Imaginary Potential
Salgado, the pilot, a Cuban-American with the physique of a linebacker, was imperturbable, a fatalistic observer of the elements. MAMBO
According to the perturbation theory, a distribution law of matrix element in secular equation is discovered in degenerate state and wave function property of the hydrogen atom.
In this study, we show that TMR-actin perturbs the filaments structure when copolymerized with unlabeled actin; the resulting filaments are more fragile and shorter than the control filaments.
As though for reassurance he looked up at the imperturbable face in the portrait.
As nuclei spin, the balance of factors is perturbed, and at very high angular momenta nuclei may adopt odd shapes resembling peanuts, bananas, jumping jacks, or sea urchins, among others.
Alternative cosmologies try to account for these perturbations in different ways.
Iam perturbed to see that I'm almost extinct. Times, Sunday Times
I am a bit perturbed that the bottles are so small. The Sun
Fundamentalists threaten to perturb the social order
On the contrary, when all others have given up in despair, these persons stand imperturbable in the face of peril, relying for support not on material things, but on the soundness of reason and on their own superior judgement.
Second, we have examined perturbations in a normal rather than a tangential direction along the limit cycle.
He turned on his moccasined heel and walked out, imperturbable, sphinx-like, neither giving nor receiving greetings nor looking to right or left. Chapter III
If a sufficiently large perturbation is introduced, the developmental buffering capacity is overcome and the genetic variation for ocellus number is revealed. The Genotype/Phenotype Distinction
If as claimed Nibiru is coming from Orion it would be bearing down close to Saturn, with clear perturbative influences, and those would be correlated with perturbations on Jupiter. 2012: NASA's Scientific Reality Check | Universe Today
If his character needed to express perturbation, Reagan furrowed his brow.
The next step in animal locomotion is to subject animals to perturbations and reveal the function of all their parts.
Holes appear only if a finite perturbation is applied to the layer for accelerations a above 10g. Faraday's Wave Garden
Some readers may have been perturbed by the figures quoted in that article.
Perturbations in the orbit of the planet Uranus led to the discovery of Neptune in 1846.
Perturbations in the orbit of the planet Uranus led to the discovery of Neptune in 1846.
The parameter is the average mean square of the unperturbed dimension, which is a characteristic parameter for a given polymer chain.
The conformation of the DNA molecule in solution is fluctuating constantly due to thermal perturbations.
A trailblazer all her life, she is unperturbed when it comes to speaking her mind on controversial issues regarding life and love.
They seem really perturbed that females are entering this male bastion.
The joy in anticipating the arrival of the child is often replaced with perturbation and anxiety.
The effect of the protein is modeled as an external field acting on the unperturbed eigenstates of the chromophore.
The prevalent formula for nonzero perturbation matrix in the secular equation is gained by the perturbation theory in degenerate state and property of spherical harmonics function.
The prosecutors liked me because my professional experience as a media researcher had steeled me against public abuse and made me imperturbable under cross examination.
If their contributions to behavior are understood then one should be able to predictably alter the behavior by perturbing the activity of the neurons.
Nothing much, a bit of carelessness, yet enough to bring the professional wrath of Doctor Bicknell about his ears and to perturb the working of the staff and nurses for twenty-four hours to come. SEMPER IDEM
He apparently was not perturbed by the prospect of a policeman coming to call.
I sense something -- a perturbance in the Force I have not felt since ... Ewok Cook-Out
The audience seemed unperturbed by the distant thud of artillery. Times, Sunday Times
And when Kerr's PhD supervisor left the University of Cambridge with Kerr only half way through his thesis, it didn't perturb him.
The teacher is a little perturbed now, her face slightly red.
It seemed to me that the project was going quite well, and so I was perturbed that Ed seemed uninterested.
And the weight is lifted further when others in the group seem unperturbed by my humanity. Christianity Today
He said local residents were perturbed by this and felt there was the potential for the emergency services to get confused.
The consensus model presented here is derived from the results of analyzing only six traces recorded in response to a single perturbation.
The electrons were perturbed by the passing ion
His slightest frown might perturb them, his anger terrify them, his command compel them to certain death; yet, on the other hand, not one of them would have dreamed of addressing him otherwise than intimately by his first name, which name, "Hardman," was transmuted by their tongues into Kanaka THE BONES OF KAHEKILI
News of the arrest perturbed her greatly.
She added: "Mice with site-specific perturbation of BDNF expression did not exhibit behavioral abnormalities typically observed in mice with global deletion of the Bdnf gene throughout the brain, such as hyperaggression, depressive-like behavior, and hyperactivity. Good news for obese people, Protein behind overeating identified
Erat eodem tempore Gn. Piso, adolescens nobilis, summae audaciae, egens, factiosus, quem ad perturbandam rem publicam inopia atque mali mores stimulabant. C. Sallusti Crispi De Bello Catilinario Et Jugurthino
Mamma was at the Willard waiting for "those darling children" to come, and when, much later than he was expected, "dear Paul" arrived alone and in a greatly perturbed state of mind, mother and son had considerable food for thought until the midnight car carried them back to Annapolis, where Paul "clomb" the wall at the water's edge and "snoke" into quarters (in Bancroft's vernacular) in the wee, sma 'hours, a weary, disgusted and unamiable youth. Peggy Stewart at School
So calmly was it done, so imperturbable were all the black countenances, that I half began to conjecture that the chaplain himself intended it for a hymn, though I could imagine no propsective rhyme for trouble unless it were approximated by debbil, which is, indeed, a favorite reference, both with the men and with his Reverence. Army Life in a Black Regiment
Studia literarum et animi perturbationes fugiat, et quantum potest jucunde vivat. Anatomy of Melancholy
He is also perturbed by the fact that no meaningful debate is being made on this illogical act of film censorship.
The second mutant phenotype is a slower rate of photoreceptive disk membrane renewal in the outer segments, caused by perturbed phagocytosis of disk membranes.
Through what is called neutrality of tone, philosophical discourse must also guarantee the neutrality or at least the imperturbable serenity that should accompany the relation to the true and the universal.
Mr. Jaffa is already developing what the ancient Stoics and the great Danish philosopher Søren Kierkegaard called ataraxia, or imperturbability. How to Handle a Market Gone Mad
Guiscardo already was a dead man in Law, and death was likewise welcome to her, rather then the deprivation of her Love; and therefore, not like a weeping woman, or as checkt by the offence committed, but carelesse of any harme happening to her: stoutely and couragiously, not a teare appearing in her eye, or her soule any way to be perturbed, thus she spake to her Father. The Decameron
hitherto imperturbable, he now showed signs of alarm
They waved us to empty chairs, plonking cups filled with coffee as thick as treacle in front of us - and, completely unperturbed, carried on raising the roof.
The telescopes sift through the background cosmic radiation to find spots where it has been slightly perturbed as it passes through extremely hot gas, a hallmark characteristic of galaxy clusters.
Considering this information, it is conceivable to propose that the transition to seizure can be arrested by specific perturbations dictated by the known dynamics of the epileptogenic areas.
Tout ca n'empeche pour dire que si je suis quand meme assez censé pour faire la part des choses je me dis qu'effectivement a pousser le faux au plus pres du vai ca peut perturber quelques esprits ... Pinku-tk Diary Entry
It is the Holy Spirit--'rest for the weary, refreshment for the pining, solace in the midst of woe'--who imparts to the soul an imperturbable poise and a serene calm, the character of recollectedness, the soaring lightness of a full inner freedom. Finding Peace
9, Natura data fit? unus liorum eft nobilis Ratiot Itbido, ira, iiAlter pfotervuSt ultimus traftabilis. ttQaodfi infpienti fraena permittas, ftatim ttSaltat, ferocit, cunfta perturbat, niens ttFufore caeco, medium & adjungens fibi Analysis operum S.S. patrum et scriptorum ecclesiasticorum
And only six weeks after the birth Liz was a little perturbed to be asked if she could babysit. DEATH AND TRANSFIGURATION
Saw a woman with roughened hands opening the door to him, smiling a little at this stranger, unperturbedly welcoming him as her husband. DREAMS OF INNOCENCE
Meanwhile the organisers remain unperturbed by the brouhaha.
It's very much like the radiance of falling in love, but it's not the ordinary falling in love where we're still involved in attachment and aversion; it's a radiance that is imperturbable because totally ultimate.
‘Ah, yes,’ replied Kierkegaard, unperturbed, stepping back with a ceremonious sweep of his arm, ‘I, however, shall.’
Thus some environmental perturbations may be detected by components of the gastrovascular system, which may then integrate the environmental inputs and produce an altered pattern of system-level behavior.
The future of experiments to test the behavioral role of neurons in vertebrates lies in using reverse genetic tools to perturb function.
It is believed that a minor perturbation in solar heating caused by orbital changes could lead to another ice age or warming period.
The British were not unduly perturbed.
However, neither Clive or Christine were perturbed by this.
These degenerin genes encode ion channels, and mutations in these genes appear to perturb the ionic balance in cells, resulting in their death.
It could change the heating structure of the atmosphere and perturb the climate system in ways we don't understand now.
Iam perturbed to see that I'm almost extinct. Times, Sunday Times
the existence of Neptune was predicted from perturbations in the orbit of Uranus and it was then identified in 1846
What perturbs me is that magazine articles are so much shorter nowadays.
She is very perturbed about her husband's health.
The bonne turned again to survey me, and seeing my eyes wide open, and, I suppose, deeming their expression perturbed and excited, she put down her knitting. Villette
In other words, you have to hope that the current court is willing, not only to uphold the decision of Wickard (a good bet) but also to blow through it and set an even more lenient standard by which to adjudge Congressional authority (a bad bet). perturbed says: Matthew Yglesias » Constitutional Objections to Health Reform
His features went from a little annoyed at me, to shock, surprise, perturbation, and then something like a tightly constricted anger.
The Queen's mingling of the old and new religions (the 'Elizabethan Settlement') perturbed reformers and conservatives alike.
always appeared completely unmoved and imperturbable
But it was another member of the US delegation who may have been most perturbed by the incessant backroom chatter about supposed bribes and payoffs. Times, Sunday Times
And, after all, she only voiced the general opinion of the school, which, by an unwritten law, had established a calm imperturbation as the height of good breeding. The New Girl at St. Chad's A Story of School Life
The fax was pouring out messages, the telephone had barely stopped and the loyal secretary was still at her station in the office, cool and imperturbable as ever.
Tamara was usually a resolute soldier, a calm and imperturbable Warrior of God, but now she seemed distressed. The Omega Theory
Unperturbed, he pressed ahead with a policy of reconciliation, drawing up a civil concord whereby armed groups would be amnestied if they laid down their arms.
Of course, as the Self-annointed Second Coming (no pun intended) of the Prodigal Son, maybe Frank has spent a fair amount of time covered by Santorum and, hence, is not perturbed. Think Progress » Santorum excuses Graham’s anti-Muslim comments, calls them ‘reasonable.’
But emotionally he found it extremely difficult to resign himself to the disappearance of that invigorating militancy and that imperturbable self-assurance that had marked the working class in the 1970s.
In disposition is that transitory melancholy which goes and comes upon every small occasion of sorrow, need, sickness, trouble, fear, grief, passion or perturbation of the mind.

How To Use Perturb In A Sentence

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