decisive may apply to something that ends a controversy, a contest, or any uncertainty.

DECISIVE definition: having the power or quality of deciding; putting an end to controversy; crucial or most important. See examples of decisive used in a sentence.

DECISIVE definition: 1. able to make decisions quickly and confidently, or showing this quality: 2. strongly affecting…. Learn more.

1. having the power to decide, end a controversy, or determine a result. 2. resolute: a decisive manner. 3. unquestionable; definite: a decisive lead.

Dec 14, 2025 · decisive (comparative more decisive, superlative most decisive) Having the power or quality of deciding a question or controversy; putting an end to contest or controversy; final; …

If someone is decisive, they have or show an ability to make quick decisions in a difficult or complicated situation. He should give way to a more imaginative, more decisive leader.

putting an end to controversy; crucial or most important: Your argument was the decisive one. characterized by or displaying no or little hesitation; resolute; determined: The general was known for …

If you make decisions quickly, you are someone who is decisive. A decisive event can settle something, like a war. People who are wishy-washy are the opposite of decisive: being decisive means you don't …

Factsheet What does the word decisive mean? There are five meanings listed in OED's entry for the word decisive. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Definition of decisive adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.