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.
Firefighters launched a potentially decisive push Tuesday to encircle Belgium's largest wildfire in a century, despite wind and rain hampering air support operations over the High Fens nature reserve.
From Barron's ● Aug. 18, 2026
“Being decisive with all my decisions and just living with it,” Maiava said when asked about some key lessons he picked up.
From Los Angeles Times ● Aug. 14, 2026
Leavitt, by never failing to placate, flatter and worship her boss, has displayed a singular and decisive pathway, although not a very original one, to political success.
From Salon ● Aug. 14, 2026
The Tour de France Femmes ends with a decisive victory by Demi Vollering, but not before some finger-pointing by riders and endless debate from fans.
From The Wall Street Journal ● Aug. 11, 2026
Above all, he has no conception of a decisive transition in the natural sciences.
From "The Invention of Science" by David Wootton
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.
