Definitions of decisive

1. Decisiveness.

2. Decisively.

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

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

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

6. Marked by promptness and decision.

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

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.