crucial meaning and definition

CRUCIAL adjective

Definition of crucial (adjective)

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
   • antonym: 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