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Definitions

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.

Bass did not offer any definitive conclusions, saying the city now has outside researchers assessing the problem.

From Los Angeles Times • Apr. 5, 2026

Defense Secretary Pete Hegseth declined to offer a definitive timeline for the conflict or rule out a ground invasion in a news conference Tuesday morning, though he said negotiations are ongoing.

From Barron's • Mar. 31, 2026

Even so, researchers have not reached a definitive conclusion.

From Science Daily • Mar. 30, 2026

It is unhygienic, but there is no definitive proof it is responsible and is hardly unusual behaviour.

From BBC • Mar. 20, 2026

But Bull remained unhurried, gliding around the court with the definitive moves of the natural.

From "The Great Santini" by Pat Conroy

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.