Scrabble Dictionary

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Invalidate

ɪnˈvalɪdeɪt

Invalidate definitions

verb

Inflections:

invalidate invalidated invalidates invalidating

make or prove (an argument, statement, or theory) unsound or erroneous

Synonyms:
disprove show/prove to be false refute explode contradict rebut negate gainsay belie give the lie to discredit expose debunk knock the bottom out of drive a coach and horses through
deprive (an official document or procedure) of legal validity because it contravenes a regulation or law

"a technical flaw in her papers invalidated her nomination"

Synonyms:
render invalid void nullify annul negate cancel quash veto overturn overrule override undo reverse