Definitions of decisive

1. determining or having the power to determine an outcome; " cast the decisive vote"; " two factors had a decisive influence"

2. characterized by decision and firmness; " an able an decisive young woman"; " we needed decisive leadership"; " she gave him a decisive answer"

3. Having the power or quality of deciding a question or controversy; putting an end to contest or controversy; final; conclusive.

4. Marked by promptness and decision.

5. Final; conclusive; as, a decisive victory; prompt; positive; determined.

6. Decisively.

7. Decisiveness.

8. Having the power of deciding: final: positive.

9. Final; conclusive; positive.

10. Putting an end to debate or question; conclusive; positive; decided.

11. Having the power or quality of deciding; final; conclusive; firm and resolute of purpose.

12. Having the power of determining any difference; having the power of settling any event.