deadly Meaning, definition in Cambridge English Dictionary
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Meaning of "deadly" - English Dictionary

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deadlyadjective

uk   us   /ˈded.li/

deadly adjective (VERY DANGEROUS)

B2 likely to cause death: a deadly virus a deadly weapon
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deadly adjective (COMPLETE)

complete or extreme: They have been deadly enemies ever since Mark stole Greg's girlfriend.

deadly adjective (BORING)

informal extremely boring: The party was deadly.

deadlyadverb

uk   us   /ˈded.li/
C1 completely or extremely: I thought she was joking but she was deadly serious.
(Definition of deadly from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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