Synonyms of undo

1 Syllable
spoilt, spoil, nig, razed, raze
2 Syllables
unstop, gapped, loosed, annul, unpins, razing, unzip, rewind, unfix, holing, unlock, loosing, untying, unwrap, annuls, untie, spoiling, unfold, unscrew, unbar, unbolt, unpin, unstrap, unlatch, unbuilt, unstick, holed, rewound, abscind, unknot, unbars, unsnaps, gapping, uncork, renig, unbelt, cancels, sunder, loosen, unhitch, sunders, unbuild, unlash, loosens, cancel, x-out
3 Syllables
circumduct, disannul, torpedoing, unlacing, unlashed, unsnapped, unlaced, renigging, unscrewing, demolish, unbelted, cancelled, disconcert, unwrapping, overset, vitiating, unhitched, unwrapped, manumit, negate, dividing, annulling, nullifying, unknotted, unfolded, dismantling, unsticking, unlocking, uncrease, sundered, loosened, nullified, vitiated, releasing, vitiate, canceled, countercheck, torpedoed, uncage, dismantled, rewinding, loosening, countervail, sundering, checkmated, unbutton, unbuckle, checkmate, disenthrall, unlace, unzipped, unsnapping, uncorked, negating, uncorking, discumber, canceling, checkmating, renigged, fissured, rewinded, unrigged, unbuckled, uncreased, unmake, unfixing, unstrapped, unfasten, cancelling, negated, outspreading, annulled, abolish, dismantle, fissuring, nullify, unclose
4 Syllables
disestablish, countervailing, unfastened, unfastening, denudate, unravelled, abrogate, uncombine, abrogating, disengage, neutralizing, unraveling, manumitted, unravelling, disentangle, unraveled, disentangling, watergate, abolished, abrogated, separating, demolishing, demolished, unbuttoned, disengaging, disentangled, neutralized, abolishing, disconcerting, oversetting, abolishes, manumitting
5 Syllables
disestablished, disestablishing, annihilate, invalidating, invalidated, annihilating, annihilated, invalidate