Unperturbed is most often followed by by to show what does not disturb someone. About is also possible in some contexts, while other prepositions usually have separate functions.
Use unperturbed by for things that do not worry or disturb someone. Unperturbed about is sometimes used for topics or situations. Phrases with with, in, or as usually introduce other sentence meanings.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use by for the thing that does not disturb someone.
About can introduce a subject that does not worry someone.
In usually introduces a situation or location rather than forming a fixed adjective-preposition pair.
As introduces a role or condition, not the source of calmness.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
With is not normally used after unperturbed.
✕ She was unperturbed with the criticism. ✓ She was unperturbed by the criticism.In usually refers to place or situation.
✕ He was unperturbed in the bad news. ✓ He was unperturbed by the bad news.As introduces a role, not a subject of concern.
✕ They were unperturbed as the delay. ✓ They were unperturbed about the delay.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Yes. It is the most natural way to show lack of disturbance.
Yes. It is used when talking about a topic or issue that does not worry someone.
No. Modern English normally uses unperturbed by or unperturbed about instead.
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