adjective. Settling a matter or conflict; conclusive:

adjective. Characterized by or showing the ability to make decisions quickly and firmly; resolute.

Having the power or quality of determining a question, doubt, contest, event, etc.; final; conclusive; putting an end to controversy: as, the opinion of the court is decisive on the question.

Marked by decision or prompt determination.

noun. A decisive thing.

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

adjective. Marked by promptness and decision.

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

adjective. Marked by promptness and decision.

adjective. determining or having the power to determine an outcome

adjective. characterized by decision and firmness

adjective. forming or having the nature of a turning point or crisis

adjective. unmistakable