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.

They need to be U.S. citizens with a valid Social Security number.

From MarketWatch • May 28, 2026

A 65-year-old British woman named Karen Newman traveling on a valid tourist visa was arrested in September 2025 at the Montana border, shackled and held for six weeks in an ICE detention center.

From Los Angeles Times • May 27, 2026

Beijing’s municipal government used Liu’s case, identifying him only by his surname, as an example to remind employers that AI isn’t a valid reason to fire people.

From The Wall Street Journal • May 27, 2026

A player can be fined up to £50,000 if they do not appear at all - unless a valid reason has been communicated to the governing bodies.

From BBC • May 22, 2026

Most likely, both the gossip theory and the there-is-a-lion-near-the-river theory are valid.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

Vocabulary lists containing valid

Jim Burke's Academic Vocabulary List

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!

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!