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.

“Waiting for a definitive inflection point before acting is not a viable risk management posture,” he said.

From Barron's • May 22, 2026

The NCI notes that PAHs and related high temperature cooking compounds have caused cancer in animal studies, although human population studies have not established a definitive link between exposure from cooked meats and cancer.

From Science Daily • May 22, 2026

The files do not draw any definitive conclusions about the existence of extraterrestrial life or provide any evidence of alien technology.

From BBC • May 22, 2026

My economics research published in the peer-reviewed Journal of Law and Economics demonstrates that the answer is a definitive no.

From Slate • May 22, 2026

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

From "The Great Santini" by Pat Conroy

Vocabulary lists containing definitive

New Shakespeare Lines Discovered?

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

G.1: Principles of Geography (Sources 1–14)

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Extremely Loud and Incredibly Close

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!