Invalidate Meaning

/ɪnˈvæl.ɪ.deɪt/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

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Definition

verbTo make invalid. Especially applied to contract law.

verbTo make or declare (an argument, statement, or theory) unsound or erroneous; disprove.

Sentence Examples

Ziri doesn't want to invalidate his ablutions.

Synonyms & Antonyms

Synonyms:
avoid cancel void
Antonyms:
validate
CEFR Practice Quiz
New evidence could ____ the entire theory that scientists had believed for years.
CEFR Practice Quiz (Alternate)
A single mistake in the experiment could ____ the entire study and force the scientists to start over.

Word Origin & History

First attested in 1649; borrowed from Middle French invalider, from invalide + -er. By surface analysis, in- + validate or invalid + -ate.

Explore More B2 Vocabulary Words

invaluable B2 invariable B2 invariably B2 invasion B2 invasive B2
CEFR Practice Quiz
New evidence could ____ the entire theory that scientists had believed for years.
CEFR Practice Quiz (Alternate)
A single mistake in the experiment could ____ the entire study and force the scientists to start over.

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