con·​clu·​sive | \ kən-ˈklü-siv How to pronounce conclusive (audio) , -ziv \

Definition of conclusive

1 : of, relating to, or being a conclusion
2 : putting an end to debate or question especially by reason of irrefutability The results were not conclusive.

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Other Words from conclusive

conclusively adverb
conclusiveness noun

Synonyms & Antonyms for conclusive



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Choose the Right Synonym for conclusive

conclusive, decisive, determinative, definitive mean bringing to an end. conclusive applies to reasoning or logical proof that puts an end to debate or questioning. conclusive evidence decisive may apply to something that ends a controversy, a contest, or any uncertainty. a decisive battle determinative adds an implication of giving a fixed character or direction. the determinative factor in the court's decision definitive applies to what is put forth as final and permanent. the definitive biography

Examples of conclusive in a Sentence

the archeological discovery was conclusive proof that the Vikings had indeed settled in North America around 1000 A.D. a conclusive argument for allowing the students to put on a play of their own choosing
Recent Examples on the Web While Florida fans read intention into the play, the angle lacked conclusive evidence whether Daniel had actually been twisting the quarterback's ankle. Jon Hale, The Courier-Journal, "Kentucky's Kash Daniel apologizes to Florida quarterback Kyle Trask for ankle twist," 31 Dec. 2019 The last was an obviously absurd charge, but even the first two were not high crimes, and there has never been any conclusive evidence that Nixon was guilty of them anyway. Conrad Black, National Review, "An Impeachment Role for the Supreme Court?," 18 Dec. 2019 Even without conclusive evidence about what chemicals have caused 2,290 people to fall ill, the CDC said that vitamin E acetate should not be added to vaping products. oregonlive, "Vitamin E acetate found in some vaping-related lung illness victims’ products," 26 Nov. 2019 The withdrawal was meant to give the government time to conduct conclusive studies about the effects of uranium mining in the area. Debra Krol, azcentral, "House to vote on permanently banning uranium mines near the Grand Canyon," 29 Oct. 2019 The most conclusive thing that can be said is that no other cause for my son’s death could be found. Gillian Brockell, Washington Post, "Here are all the things I didn’t know about stillbirth, until it happened to me," 15 Oct. 2019 Mechen says this wolf probably isn't a Dire Wolf, but more conclusive evidence about the ancient predator will be available after scientists at the Swedish Museum of Natural History extract some of its DNA. Daisy Hernandez, Popular Mechanics, "Whoa, Look at This 40,000-Year-Old Wolf Head," 11 June 2019 Because the bright accretion disk sends light toward the darker torus, where it is absorbed and reemitted at infrared wavelengths, the echo is conclusive evidence that some sort of rapid change is occurring within the accretion disk itself. Shannon Hall, Scientific American, "Lights Out: Astronomers Illuminate the Mystery of Vanishing Quasars," 12 Dec. 2019 But Lord and her colleagues found no conclusive evidence that domesticated dogs hold their tails differently from wolves, foxes or other wild canids. Jason Bittel,, "Tame foxes taught us about animal domestication. But did we get the story wrong?," 6 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'conclusive.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of conclusive

1536, in the meaning defined at sense 1

History and Etymology for conclusive

see conclude

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Time Traveler for conclusive

Time Traveler

The first known use of conclusive was in 1536

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Statistics for conclusive

Last Updated

15 Jan 2020

Cite this Entry

“Conclusive.” The Dictionary, Merriam-Webster Inc., Accessed 25 January 2020.

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More Definitions for conclusive


How to pronounce conclusive (audio)

English Language Learners Definition of conclusive

: showing that something is certainly true


con·​clu·​sive | \ kən-ˈklü-siv How to pronounce conclusive (audio) \

Kids Definition of conclusive

: decisive sense 1 Police found conclusive evidence.

Other Words from conclusive

conclusively adverb This conclusively proves her innocence.



Legal Definition of conclusive

1 : of, relating to, or being a conclusion
2 : putting an end to debate or question especially by reason of inability to be refuted

Other Words from conclusive

conclusively adverb
conclusiveness noun

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Comments on conclusive

What made you want to look up conclusive? Please tell us where you read or heard it (including the quote, if possible).


dull or mediocre

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