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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.

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 too early to offer a definitive assessment of the landscape of antisemitism in the post-Oct.

From Los Angeles Times • Mar. 24, 2026

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

From BBC • Mar. 20, 2026

Something occurred inside of him then, something mysterious and definitive that uprooted him from his own time and carried him adrift through an unexplored region of his memory.

From "One Hundred Years of Solitude" by Gabriel Garcia Marquez

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