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.

The Met Office red extreme heat warning for the south Midlands, south-east Wales and southern England is valid until 23:59 GMT Thursday.

From BBC • Jun. 25, 2026

Those eligible are children born between Jan. 1, 2025, and Dec. 31, 2028, who are U.S. citizens with a valid Social Security number.

From MarketWatch • Jun. 23, 2026

Green said data centers could be a hot topic in upcoming elections, as Americans on both sides of the aisle are expressing valid concerns.

From Los Angeles Times • Jun. 21, 2026

In 1985, the Conservative government, then led by Margaret Thatcher who Sutch also ran against, introduced laws that candidates who poll less than 5% of the total valid votes will lose their deposit.

From BBC • Jun. 19, 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

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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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