decisive
Americanadjective
-
having the power or quality of deciding; putting an end to controversy; crucial or most important.
Your argument was the decisive one.
- Synonyms:
- final, conclusive
-
characterized by or displaying no or little hesitation; resolute; determined.
The general was known for his decisive manner.
- Synonyms:
- firm
-
a decisive defeat.
-
unsurpassable; commanding.
a decisive lead in the voting.
adjective
-
influential; conclusive
a decisive argument
-
characterized by the ability to make decisions, esp quickly; resolute
Other Word Forms
Etymology
Origin of decisive
First recorded in 1605–15; from Medieval Latin dēcīsīvus, equivalent to Latin dēcīs(us) ( see decision) + -īvus adjective suffix ( see -ive)
Explanation
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 waffle or take forever to make up your mind, and then you stick by what you decided. People admire politicians, coaches, and friends who are decisive. In sports, if a home run won the game, that was the decisive run. When you reach a crisis point in life — when things are going to change one way or the other — you've reached a decisive moment.
Vocabulary lists containing decisive
"Of Mice and Men"
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Metamorphosis
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"Night," Vocabulary from the memoir
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It was also, however, the race in which it took a potentially decisive turn, putting a huge dent in George Russell's hopes of beating his 19-year-old Mercedes team-mate Kimi Antonelli to the championship.
From BBC • May 25, 2026
To write about the afterlife of the Revolution without a deeper look at Lincoln is to omit a decisive turn in the narrative.
From The Wall Street Journal • May 22, 2026
While LaRose believes the risk in the short term is for higher rates, he said he’s “not necessarily sold” on the notion that there’s a decisive and explosive breakout to the upside.
From MarketWatch • May 19, 2026
Tinubu thanked Trump for his "leadership and unwavering support in this effort", and that he looked "forward to more decisive strikes against all terrorist enclaves across the nation".
From Barron's • May 16, 2026
When the decisive vote came in April, Madison attributed his defeat to “the exertions and influence of Aristocracy, Anglicism, and mercantilism” led by “the Banks, the British Merchts., the insurance Comps.”
From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
