valid

[val-id] / ˈvæl ɪd /

ADJECTIVE

right, genuine

Synonyms

STRONGEST

accurate authentic binding compelling conclusive credible good lawful legal legitimate logical original persuasive solid true well-founded

WEAK

attested authoritative bona fide cogent confirmed convincing determinative efficacious efficient good-faith in force irrefutable just kosher legit official potent powerful proven pure sound stringent strong substantial telling tested trustworthy ultimate unadulterated unanswerable uncorrupted weighty well-grounded

Antonyms

STRONGEST

counterfeit evil fake false illegal illegitimate illicit improbable invalid unlawful unlikely unreal unreliable untrustworthy wrong

WEAK

unacceptable unsound

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.

If time or space is reversed in their equations, the laws remain valid.

From Science Daily • May 22, 2026

“The cataloguing and photographing of the notebook was a valid part of the inventory search,” he wrote.

From The Wall Street Journal • May 18, 2026

"It's definitely not at the point where we can trust technology to make strategic decisions or even make tactical decisions about what's a valid target," Fink said in a telephone interview.

From Barron's • May 15, 2026

The 40-year-old was additionally charged with aggravated vehicle taking, driving while disqualified and driving without valid insurance.

From BBC • May 13, 2026

But other physicists propose that two alternative histories, two equally valid realities, could exist side by side—the one you know and the one in which you were never born.

From "Cosmos" by Carl Sagan

Vocabulary lists containing valid

Jim Burke's Academic Vocabulary List

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TEKS ELAR Academic Vocabulary List (5th-7th grades)

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The Real Deal: Synonyms for "True"

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