decisive
Decisive is an adjective describing someone or something that is able to make decisions quickly and effectively, or that determines a result with confidence and finality. It is used to indicate actions, judgments, or outcomes that settle issues or steer events toward a definite conclusion. A decisive leader makes clear choices; a decisive victory leaves little doubt about who has prevailed; a decisive move can alter the course of a game or negotiation.
Etymology: The term derives from Latin decisivus, from decidere “to decide” (de- “off” + caedere “to cut”),
Usage and nuance: Decisive often carries a positive sense of clarity, resolve, and efficiency. In some contexts
Related forms: The noun is decisiveness; the adverb is decisively. Synonyms include conclusive, definitive, and resolute;