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.

“We won’t have definitive evidence of second-round effects for a while,” she said.

From The Wall Street Journal • Apr. 14, 2026

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

From Salon • Apr. 14, 2026

Until the U.S. can show it has definitive control over the strait, it seems unlikely that shipping companies will risk being caught in the middle of a shootout.

From Barron's • Apr. 13, 2026

However, the data is limited and not definitive.

From Science Daily • Apr. 12, 2026

Ti Fifi wrote that she needed him to be definitive.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

Vocabulary lists containing definitive

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Extremely Loud and Incredibly Close

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