Synonyms for Deadly

Definition of deadly

adverb
  1. as if dead
  2. (used as intensives) extremely; "she was madly in love"; "deadly dull"; "deadly earnest"; "deucedly clever"; "insanely jealous"
adjective
  1. causing or capable of causing death; "a fatal accident"; "a deadly enemy"; "mortal combat"; "a mortal illness"

18 synonyms found

Writing tips for "deadly"

Choosing the right synonym depends on context, tone, and audience. Words like baneful, deathly, deucedly can replace "deadly" depending on the shade of meaning you need. In poetry and songwriting, swapping synonyms lets you match a rhyme scheme or meter without changing your meaning. In prose, varying your word choice avoids repetition and keeps readers engaged.

With 18 alternatives available, "deadly" gives you flexibility across registers — from formal to casual, from literary to conversational. Try pairing these synonyms with our rhyme finder to discover words that both mean and sound like what you need.

"Deadly" in song lyrics

See how deadly is used in real songs:

  • "I know y'all say damn I'm so calm, but I'm deadly"
    Ali Vegas — Critics
  • "Will get blown into fragments and left in debris, did he mention I'm deadly?"
    Apathy — Personal Jesus
  • "I'm ready to go to war like my group Three Deadly"
    Beelow f/ Ms. Peaches, Thug Addict

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