THESAURUS
Revoke
abjure, abolish, abrogate, annihilate, annul, assert the contrary, back down, back out, backwater, belie, bring to naught, cancel, cite, climb down, contest, contradict, contravene, controvert, counter, countermand, counterorder, crawfish out, cross, deny, disaffirm, disallow, disannul, disavow, disclaim, dismantle, disown, disprove, dispute, do away with, eat crow, eat humble pie, erase, expunge, forswear, gainsay, impugn, invalidate, join issue upon, lift, make void, negate, negative, not accept, not admit, nullify, oppose, override, overrule, quash, recall, recant, recollect, refuse to admit, refute, remember, remind, reminisce, renege, renounce, repeal, repudiate, rescind, retain, retract, retrospect, reverse, revive, set aside, suspend, swallow, take back, take issue with, undo, unsay, vacate, veto, void, waive, withdraw, write off
ROGET THESAURUS
Revoke
Tergiversation
VB
change one's mind, change one's intention, change one's purpose, change one's note, abjure, renounce, withdraw from, waver, vacillate, wheel round, turn round, veer round, turn a pirouette, go over from one side to another, pass from one side to another, change from one side to another, skip from one side to another, go to the rightabout, box the compass, shift one's ground, go upon another tack, apostatize, change sides, go over, rat, recant, retract, revoke, rescind, recall, forswear, unsay, come over, come round to an opinion, crawfish, crawl, draw in one's horns, eat one's words, eat the leek, swallow the leek, swerve, flinch, back out of, retrace one's steps, think better of it, come back return to one's first love, turn over a new leaf, trim, shuffle, play fast and loose, blow hot and cold, coquet, be on the fence, straddle, bold with the hare but run with the hounds, nager entre deux eaux, wait to see how the cat jumps, wait to see how the wind blows.
Abrogation
VB
abrogate, annul, cancel, destroy, abolish, revoke, repeal, rescind, reverse, retract, recall, abolitionize, overrule, override, set aside, disannul, dissolve, quash, nullify, declare null and void, disestablish, disendow, deconsecrate, disclaim, ignore, repudiate, recant, divest oneself, break off, countermand, counter order, do away with, sweep away, brush away, throw overboard, throw to the dogs, scatter to the winds, cast behind, dismiss, discard, cast off, turn off, cast out, cast adrift, cast out of doors, cast aside, cast away, send off, send away, send packing, send about one's business, discharge, get rid of, bounce, fire, fire out, sack, cashier, break, oust, unseat, unsaddle, unthrone, dethrone, disenthrone, depose, uncrown, unfrock, strike off the roll, disbar, disbench, be abrogated, receive its quietus, walk the plank.
Negation
VB
deny, contradict, contravene, controvert, give denial to, gainsay, negative, shake the head, disown, disaffirm, disclaim, disavow, recant, revoke, dispute, impugn, traverse, rebut, join issue upon, bring in question, call in question, give the lie in his throat, give one the lie in his throat, deny flatly, deny peremptorily, deny emphatically, deny absolutely, deny wholly, deny entirely, give the lie to, belie, repudiate, set aside, ignore, rebut, qualify, refuse, recuse.