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Definition of Invalidate
1. Verb. Declare invalid. "Void a plea"
Exact synonyms: Annul, Avoid, Nullify, Quash, Void
Generic synonyms: Cancel, Strike Down
Specialized synonyms: Break, Stet
Derivative terms: Annulment, Invalidation, Invalidator, Nullification, Nullification, Nullifier, Nullifier, Void, Voidable, Voider
Antonyms: Validate
Generic synonyms: Cancel, Strike Down
Specialized synonyms: Break, Stet
Derivative terms: Annulment, Invalidation, Invalidator, Nullification, Nullification, Nullifier, Nullifier, Void, Voidable, Voider
Antonyms: Validate
2. Verb. Make invalid for use. "Cancel cheques or tickets"
3. Verb. Show to be invalid.
4. Verb. Take away the legal force of or render ineffective. "Invalidate a contract"
Exact synonyms: Vitiate, Void
Generic synonyms: Alter, Change, Modify
Derivative terms: Invalidation, Vitiation, Voidable
Antonyms: Validate
Generic synonyms: Alter, Change, Modify
Derivative terms: Invalidation, Vitiation, Voidable
Antonyms: Validate
Definition of Invalidate
1. v. t. 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.
Definition of Invalidate
1. Verb. To make invalid. Esp. applied to contract law. ¹
¹ Source: wiktionary.com
Definition of Invalidate
1. [v -DATED, -DATING, -DATES]
Medical Definition of Invalidate
1. To weaken or make valueless: to discredit. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)