Synonyms of invalidating

1 Syllable

quash, nix

2 Syllables

weaken, offset, annul, naysaying, coner, unfit, undo, x-out, cancel, impair

3 Syllables

circumduct, disannul, counteract, destruction, overthrow, negate, refute, revoke, dissentient, discredit, ruination, destructions, abolish, ruinations, nullify, abate

4 Syllables

neutralize, negative, abrogate, privative, overrule, undermine, cancellations, cancellation, disqualify

5 Syllables

counterbalance, annihilate, obliterations, obliteration, unsupportive

6 Syllables

unaffirmative