Main entry: decisive
Definition: determining or having the power to determine an outcome
Usage: cast the decisive vote; two factors had a decisive influence
Antonyms: indecisive
Definition: not definitely settling something
Antonyms: nonfatal
Definition: not bringing death
Main entry: decisive
Definition: characterized by decision and firmness
Usage: an able and decisive young woman; we needed decisive leadership; she gave him a decisive answer
Antonyms: indecisive
Definition: characterized by lack of decision and firmness
Antonyms: irresolute
Definition: uncertain how to act or proceed
Main entry: decisive
Definition: unmistakable
Usage: had a decisive lead in the polls
Antonyms: indefinite
Definition: vague or not clearly defined or stated
Main entry: critical, decisive
Definition: forming or having the nature of a turning point or crisis
Usage: a critical point in the campaign; the critical test
Antonyms: noncrucial
Definition: of little importance; not decisive
Antonyms: unimportant
Definition: not important