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.

When I ask Sir Dieter Helm, professor of economic policy at Oxford University, for his definitive answer on the cost of renewables, he laughs.

From BBC • Apr. 15, 2026

That is formidable, but this book is meant to be definitive, and it succeeds in accomplishing that.

From Salon • Apr. 14, 2026

However, the data is limited and not definitive.

From Science Daily • Apr. 12, 2026

"I'm a supporter of these great people," he said waving towards other protesters, adding that if the court process was definitive "there would be no need for all this".

From Barron's • Apr. 11, 2026

The Second hesitated a long moment before sliding her sword back into its scabbard with a definitive click.

From "The Reader" by Traci Chee

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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