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.

Narvekar hasn’t set a definitive date for his departure but has discussed with the board possibly retiring in late 2027 in order to give them ample time to plan his succession, according to the people.

From The Wall Street Journal • May 16, 2026

Barclays anticipates that quantum systems will achieve a definitive edge over traditional computers by 2027, provided their capabilities hold up under intense technical scrutiny.

From Barron's • May 15, 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

And talks between Washington and Tehran have failed to reach a diplomatic agreement to bring a definitive end to the conflict.

From Los Angeles Times • May 12, 2026

“This one here, Dr. Abraham Abrams, in the definitive book on Jewish women monsters, says himself that the Estrie does not reveal her form to men under any circumstances.”

From "Night Owls" by A.R. Vishny

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