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
Main entry: decisive
Definition: determining or having the power to determine an outcome
Usage: cast the decisive vote; two factors had a decisive influence
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
Main entry: decisive
Definition: unmistakable
Usage: had a decisive lead in the polls