definitive

[dih-fin-i-tiv] / dɪˈfɪn ɪ tɪv /

ADJECTIVE

authoritative

Synonyms

STRONGEST

actual categorical clear-cut conclusive decisive definite exhaustive precise reliable specific ultimate unambiguous

WEAK

absolute closing complete completing concluding determining downright ending express final finishing flat out last limiting nailed down perfect plain real settling straight out terminal terminating

Antonyms

STRONGEST

ambiguous false imprecise indefinite inexact questionable uncertain vague

WEAK

incomplete inconclusive interim temporary unreliable

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 deal is subject to a definitive agreement and each company will still be able to pursue independent connectivity efforts.

From Barron's • May 14, 2026

Perhaps it says a lot that fans found it necessary to create and share fake images on social media as supposed definitive proof.

From BBC • May 14, 2026

While the results are promising, the scientists emphasized that the study provides only an early indication rather than definitive proof that diet can reverse aging.

From Science Daily • May 12, 2026

Students deferred from the early round get a definitive answer in the regular round—not a wait list, said Ashley Pallie, dean of admissions.

From The Wall Street Journal • May 11, 2026

No definitive data exist, but the majority of the extant evidentiary scraps indicate it.

From "1491" by Charles C. Mann

Vocabulary lists containing definitive

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G.1: Principles of Geography (Sources 1–14)

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Extremely Loud and Incredibly Close

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