• To render dull; to remove or blunt an edge or something that was sharp.
  • To soften, moderate or blunt; to make dull, stupid, or sluggish; to stupefy.
  • To lose a sharp edge; to become dull.
  • To render dim or obscure; to sully; to tarnish.


Similar words

Opposite words


  • From Middle English dull, dul (also dyll, dill, dwal), from Old English dol ("dull, foolish, erring, heretical; foolish, silly; presumptuous"), from Proto-Germanic *dulaz, a variant of *dwalaz, from Proto-Indo-European *dʰwel-, *dʰewel-. Cognate with Scots dull, doll, North Frisian dol ("rash, unthinking, giddy, flippant"), Dutch dol ("crazy, mad, insane"), Low German dul, dol, German toll ("crazy, mad, wild, fantastic"), Danish dval ("foolish, absurd"), Icelandic dulur ("secretive, silent"), West-Flemish dul (angry, furious).

Modern English dictionary

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