INVALIDATE

invalidate, void, vitiate

(verb) take away the legal force of or render ineffective; “invalidate a contract”

invalidate, nullify

(verb) show to be invalid

cancel, invalidate

(verb) make invalid for use; “cancel cheques or tickets”

invalidate, annul, quash, void, avoid, nullify

(verb) declare invalid; “The contract was annulled”; “void a plea”

Source: WordNet® 3.1


Etymology

Verb

invalidate (third-person singular simple present invalidates, present participle invalidating, simple past and past participle invalidated)

To make invalid. Especially applied to contract law.

Synonyms

• vitiate

Antonyms

• validate

Source: Wiktionary


In*val"i*date, v. t. [imp. & p. p. Invalidated; p. pr. & vb. n. Invalidating.] Etym: [From Invalid null.]

Definition: To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

28 June 2025

ALLERGIC

(adjective) having an allergy or peculiar or excessive susceptibility (especially to a specific factor); “allergic children”; “hypersensitive to pollen”


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Coffee Trivia

In 1511, leaders in Mecca believed coffee stimulated radical thinking and outlawed the drink. In 1524, the leaders overturned that order, and people could drink coffee again.

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