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deadly - definition and synonyms


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adjective deadly pronunciation in American English /ˈdedli/
Word Forms
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  1. 1
    able or likely to kill people

    This is a potentially deadly disease.

    a deadly weapon:

    The police charged him with possession of a deadly weapon.

    deadly to:

    Too many water changes can prove deadly to these delicate fish.

  2. 2
    [only before noun] complete
  3. 3
    informal very boring

    the same old deadly routine

  4. 4
    always able to achieve the intended result, effect, or purpose

    Miller is a deadly shooter from the three-point line.

  5. From our crowdsourced Open Dictionary
    something that is deadly is fantastic or as good as it possibly can be

    That teacher is deadly! That was a deadly class.

    Submitted by Marg from Australia on 08/08/2009

sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

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an electric skateboard

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