Definition of deadly in English:

deadly

Syllabification: dead·ly
Pronunciation: /ˈdedlē
 
/

adjective (deadlier, deadliest)

adverb

[as submodifier] Back to top  
  • 1In a way resembling or suggesting death; as if dead: her skin was deadly pale
    More example sentences
    • All the while being deadly silent, since I live with my grandmother and her bedroom is right next to the bathroom.
    • The party mood was gone and everyone was deadly quiet.
    • His face was deadly white, a bloody bandage swathed his neck, and his rainproof was soaked with the blood of a sniper's victim.
    Synonyms
  • 1.1Extremely: a deadly serious remark
    More example sentences
    • This joking remark caused Eisenhower to turn deadly serious.
    • Elves are that way though, jolly one moment and deadly serious when the situation needs it.
    • Heart failure is a deadly serious condition, but with good treatments people can double or triple their life expectancy.

Derivatives

deadliness

noun
More example sentences
  • The bomb was packed with shards of metal, nuts and bolts to increase its deadliness.
  • By contrast, the deadliness of contaminants added to reservoirs or water sources would most likely be neutralized by dilution and standard water treatment.
  • No one with any sense would place a trap of such deadliness so close to a populated area.

Origin

Old English dēadlīc 'mortal, in danger of death' (see dead, -ly1).

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