adjective

decisive

dih-SIGH-siv/dɪˈsaɪsɪv/

Settling a matter firmly and clearly.

The leader makes a decisive choice of route as the team listens.

A Black team leader confidently selects one clear route on an unlabeled map as others listen.

Etymology

deLatinoff

+cisLatinto cut

+iveLatinhaving the power or quality of

“Cutting off” supplied the image of resolving a difficulty at a stroke. Decisive describes something powerful enough to settle an issue, and also a person’s ability to reach a firm determination promptly.

In context

WILD NATURE - Nature animal documentary93:47

This counterattack is decisive. This time, not one lion can hold ground. The old bull is pulled back from the line of death.

Predator vs Prey | Nature's Deadliest Fight Backs for Survival (Full Episode) | Wildlife Documentary

More examples

Her decisive goal secures the team's place in the finals.
The election ends in a decisive victory for the challenger.
We need a decisive leader who can act quickly.

Forms

decisive · more decisive · most decisive

decisively adverb — In a way that clearly settles something.

decisiveness noun — The ability to make firm decisions.

Similar words

conclusive: Emphasizes evidence or proof that leaves no room for doubt.
definitive: Emphasizes an authoritative answer that needs no further revision.