Definitions

conclusive

[kuhn-kloo-siv] / kənˈklu sɪv /

ADJECTIVE

definite, final

Synonyms

STRONGEST

compelling convincing decisive indisputable irrefutable irrevocable precise unambiguous undeniable unmistakable

WEAK

absolute all out clear clinching cogent deciding demonstrative determinant determinative flat out incontrovertible irrefragable irrefrangible litmus test resolving revealing settling straight out telling ultimate unanswerable unarguable unconditional unquestionable what you see is what you get

Antonyms

STRONGEST

ambiguous disputable doubtful dubious indefinite questionable refutable uncertain unsure

WEAK

inconclusive

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.

The failure of negotiations to reach a conclusive end to the war doesn’t bode well for U.S.-Gulf ties, Saif said.

From The Wall Street Journal • Jun. 4, 2026

But the internal research it conducted was conclusive.

From The Wall Street Journal • May 16, 2026

But without conclusive research, it's just a guessing game - and one in which F1 risks, not for the first time, taking a wrong step because it failed to undertake rigorous analysis.

From BBC • May 14, 2026

He declared himself "no longer sceptical" about the issue, having waited for conclusive proof that humanity was changing the climate.

From Barron's • May 6, 2026

Until his death in 1943, in fact, he avoided the subject of Folsom, except to remark that the site wasn’t conclusive proof that the Americas were inhabited during the Pleistocene.

From "1491" by Charles C. Mann

Vocabulary lists containing conclusive

The Emancipation Proclamation (1862)

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Case Closed: Clud, Clus

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The Articles of Confederation (1777)

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