Synonyms & Antonyms of decisive

2 having the power to persuade
  • a lawyer who knows how to construct the kind of decisive argument that sways a jury

Synonyms for decisive

Words Related to decisive

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Antonyms for decisive

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Frequently Asked Questions About decisive

How is the word decisive different from other adjectives like it?

Some common synonyms of decisive are conclusive, definitive, and determinative. While all these words mean "bringing to an end," decisive may apply to something that ends a controversy, a contest, or any uncertainty.

a decisive battle

When is conclusive a more appropriate choice than decisive?

In some situations, the words conclusive and decisive are roughly equivalent. However, conclusive applies to reasoning or logical proof that puts an end to debate or questioning.

conclusive evidence

When can definitive be used instead of decisive?

The words definitive and decisive are synonyms, but do differ in nuance. Specifically, definitive applies to what is put forth as final and permanent.

the definitive biography

When is it sensible to use determinative instead of decisive?

The meanings of determinative and decisive largely overlap; however, determinative adds an implication of giving a fixed character or direction.

the determinative factor in the court's decision

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Time Traveler for decisive

Time Traveler

The first known use of decisive was in 1584

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Cite this Entry

“Decisive.” Thesaurus, Merriam-Webster, Accessed 26 Sep. 2021.

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More from Merriam-Webster on decisive

Nglish: Translation of decisive for Spanish Speakers

Britannica English: Translation of decisive for Arabic Speakers


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