Definitions

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.

Asked if they could have eaten once they got home, he said, “That is a valid complaint there. I would agree with that.”

From The Wall Street Journal • Jun. 5, 2026

In order to assess whether Trump’s lawsuit was valid, she ordered his personal attorneys and the DOJ to provide written explanations to the court detailing whether they were in conflict with each other.

From Slate • Jun. 4, 2026

Third, publish research that meets the criteria of relevant research—studies that answer questions that are timely, describe real problems, for which answers aren’t obvious, and for which findings are operationally valid.

From The Wall Street Journal • Jun. 3, 2026

"You can access landscapes again. There will be places that welcome your body and your way of moving. Our right to access nature is just as valid as that of a non-disabled person."

From BBC • May 30, 2026

"Vows made at sword point are not valid," the maester argued.

From "A Clash of Kings" by George R.R. Martin

Vocabulary lists containing valid

Jim Burke's Academic Vocabulary List

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

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!

The Real Deal: Synonyms for "True"

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!