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.

Only people with tickets to the game, Penn Station travelers, people who work nearby or those with valid reasons to be in the area will be allowed to enter the perimeter, she said.

From The Wall Street Journal • Jun. 8, 2026

Mail-in ballots are valid as long as they are posted by election day and arrive to county election offices by 9 June, the day before they are certified by the state's election authority.

From BBC • Jun. 4, 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

Thoughts on love, nature, trauma, aging, nostalgia and philosophy are all valid starting points, and a surfeit of possibilities can be paralyzing.

From The Wall Street Journal • Jun. 2, 2026

It was a possibility too valid to dismiss.

From "In Cold Blood" by Truman Capote

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"

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!