Antonyms for



Antonyms of verb invalidate

3 of 4 senses of invalidate

Sense 1:
invalidate, annul, quash, void, avoid, nullify
Antonym of validate (Sense 1)
=>validate, formalize, formalise

Sense 3:
invalidate, nullify
Antonym of validate (Sense 2)
=>validate

Sense 4:
invalidate, void, vitiate
Antonym of validate (Sense 4)
=>validate
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