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[ UK /dˈɛdli/ ]
[ US /ˈdɛdɫi/ ]
ADJECTIVE
  1. of an instrument of certain death
    deadly poisons
    lethal weapon
    a lethal injection
  2. (of a disease) having a rapid course and violent effect
  3. involving loss of divine grace or spiritual death
    the seven deadly sins
  4. extremely poisonous or injurious; producing venom
    venomous snakes
    a virulent insect bite
  5. causing or capable of causing death
    mortal combat
    a fatal accident
    a mortal illness
    a deadly enemy
  6. exceedingly harmful
ADVERB
  1. as if dead
  2. (used as intensives) extremely
    deadly earnest
    deucedly clever
    deadly dull
    insanely jealous
    she was madly in love

How To Use deadly In A Sentence

  • In the bower with his Welsh wife, Mortimer fumes impotently: ‘This is the deadly spite that angers me - / My wife can speak no English, and I no Welsh.’
  • Ministers have spent nearly 500million stockpiling the antiviral drug in case of a deadly epidemic but there are doubts it is effective. The Sun
  • PHNOM PENH, CAMBODIA: Thailand and Cambodia said they have made progress in settling a border dispute that sparked a deadly military confrontation last month. My Sinchew -
  • George was diagnosed with the potentially deadly condition days after his second birthday.
  • Now the fire itself wasn't very deadly, it was the smoke.
  • The wind and rain intensified as they watched the deadly twisters move towards them.
  • Everyone in this facility yields to the seven deadly sins… especially pride and vanity!
  • The severity of the decree seemed deadly to Tess.
  • ` ` Weel, sirs, I am laith to enter into deadly fued with you by spilling ony of your bluid, though Earnscliff hasna stopped to shed mine The Black Dwarf
  • No, it would have been deadly and hugely dangerous. The Sun
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