Dictionary Results for invalidate

1. invalidate - verb

· declare invalid; "The contract was annulled"; "void a plea"

Synonym(s): annul, quash, void, avoid, nullify

Hypernym(s): cancel, strike_down

Antonym(s): validate

2. invalidate - verb

· make invalid for use; "cancel cheques or tickets"

Synonym(s): cancel

Hypernym(s): score, mark

3. invalidate - verb

· show to be invalid

Synonym(s): nullify

Hypernym(s): negate, contradict

Antonym(s): validate

4. invalidate - verb

· take away the legal force of or render ineffective; "invalidate a contract"

Synonym(s): void, vitiate

Hypernym(s): change, alter, modify

Antonym(s): validate

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