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deadly - definition and synonyms


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adjective deadly pronunciation in British English /ˈdedli/
Word Forms
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  1. 1
    able or likely to kill people
    This is a potentially deadly disease.
    deadly to: Too many water changes can prove deadly to these delicate fish.
    a deadly weapon: The police charged him with possession of a deadly weapon.
  2. 2
    [only before noun] complete
    deadly silence: A deadly silence followed her announcement.
    a deadly secret: Don’t say anything to anyone – this is meant to be a deadly secret.
    in deadly earnest (=completely seriously): It started as a joke, but soon they were fighting in deadly earnest.
  3. 3
    informal very boring
    Some of our lectures were pretty deadly!
  4. 4
    always able to achieve the intended result, effect, or purpose
    The Australian captain is a deadly goal scorer.



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