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Definition of 'crucial'


  1. of extreme importance; vital to the resolution of a crisis; "a crucial moment in his career"; "a crucial election"; "a crucial issue for women"
       Synonyms: important
       Antonyms: noncrucial
  2. having crucial relevance; "crucial to the case"; "relevant testimony"
  3. of the greatest importance; "the all-important subject of disarmament"; "crucial information"; "in chess cool nerves are of the essence"
       Synonyms: all-important all important essential of the essence
  4. having the power or quality of deciding; "the crucial experiment"; "cast the deciding vote"; "the determinative (or determinant) battle"
       Synonyms: deciding determinant determinative determining

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