adjective
determining or having the power to determine an outcome
Examples
- cast the decisive vote
- two factors had a decisive influence
adjective
unmistakable
Examples
- had a decisive lead in the polls
adjective
characterized by decision and firmness
Examples
- an able and decisive young woman
- we needed decisive leadership
- she gave him a decisive answer
adjective
forming or having the nature of a turning point or crisis
Synonyms
Examples
- a critical point in the campaign
- the critical test