Dictionary Check: invalidate

"invalidate" is a valid word!

Scrabble 14 points
Words with Friends 17 points

Definition

verb

declare invalid

Example: "The contract was annulled"
Antonyms:
verb

make invalid for use

Example: "cancel cheques or tickets"
Synonyms:
verb

show to be invalid

Synonyms:
Antonyms:
verb

take away the legal force of or render ineffective

Example: "invalidate a contract"
Synonyms:
Antonyms:

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