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

"That feels valid, but it starts small, and it starts by daily actions, and this idea of sisterhood felt like a really strong theme in this film."

From Barron's • May 20, 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

"Avoid buying cover from unauthorised brokers or so-called 'ghost brokers', who leave thousands of unsuspecting motorists driving without valid insurance," he said.

From BBC • May 14, 2026

Where did people get these ideas, and how valid are they?

From "Me Talk Pretty One Day" by David Sedaris

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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