THESAURUS
repudiate
abandon, abjure, abrogate, apostatize, assert the contrary, back down, back out, backwater, ban, bar, bar out, be unmoved, be unwilling, beg off, belie, blockade, brush aside, cast, chuck, chuck out, climb down, contemn, contest, contradict, contravene, controvert, count out, counter, crawfish out, cross, cut off, debar, decline, decline to accept, default, deny, desert, despise, disaffirm, disagree, disallow, disapprove, disavow, discard, disclaim, discount, disdain, dishonor, dismiss, disown, disprove, dispute, disregard, dissent, eat crow, eat humble pie, embargo, except, exclude, forgo, forsake, forswear, freeze out, gainsay, hold out against, ignore, impugn, join issue upon, keep out, leave out, levant, lock out, negate, negative, not accept, not admit, not buy, not consent, not hear of, not pay, not think of, nullify, omit, oppose, ostracize, pass by, pass over, pass up, preclude, prohibit, protest, push aside, rat, rebuff, recant, refuse, refuse consent, refuse to admit, refuse to consider, refuse to pay, refute, reject, relegate, renege, renounce, repel, reprobate, repulse, rescind, resist entreaty, resist persuasion, retract, reverse, revoke, say nay, say no, scorn, scout, send to Coventry, shove away, shut out, spurn, stand aloof, stop payment, swallow, taboo, take back, take issue with, tergiversate, throw away, throw out, turn, turn away, turn down, turn out, unsay, vote nay, vote negatively, waive, welsh, withdraw
ROGET THESAURUS
repudiate
Rejection
VB
reject, set aside, lay aside, give up, decline, exclude, except, pluck, spin, cast,
repudiate, scout, set at naught, fling to the winds, fling to the dogs, fling overboard, fling away, cast to the winds, cast to the dogs, cast overboard, cast away, throw to the winds, throw to the dogs, throw overboard, throw away, toss to the winds, toss to the dogs, toss overboard, toss away, send to the right about, disclaim, discard.
Exclusion
VB
be excluded from, exclude, bar, leave out, shut out, bar out, reject,
repudiate, blackball, lay apart, put apart, set apart, lay aside, put aside, relegate, segregate, throw overboard, strike off, strike out, neglect, banish, separate, pass over, omit, garble, eliminate, weed, winnow, be secluded, live secluded, keep aloof, stand, hold oneself aloof, keep in the background, stand in the background, keep snug, shut oneself up, deny oneself, seclude oneself creep into a corner, rusticate, aller planter ses choux, retire, retire from the world, take the veil, abandon, sport one's oak, cut, cut dead, refuse to associate with, refuse to acknowledge, look cool upon, turn one's back upon, shut the door upon, repel, blackball, excommunicate, exclude, exile, expatriate, banish, outlaw, maroon, ostracize, proscribe, cut off from, send to Coventry, keep at arm's length, draw a cordon round, depopulate, dispeople, unpeople.
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.
Nonobservance
VB
fail, neglect, omit, elude, evade, give the go-by to, set aside, ignore, shut one's eyes to, close one's eyes to, infringe, transgress, violate, pirate, break, trample under foot, do violence to, drive a coach and six through, discard, protest,
repudiate, fling to the winds, set at naught, nullify, declare null and void, cancel, retract, go back from, be off, forfeit, go from one's word, palter, stretch a point, strain a point.
Nonpayment
VB
not pay, fail, break, stop payment, become insolvent, become bankrupt, be gazetted, protest, dishonor,
repudiate, nullify, refuse payment, pay under protest, button up one's pockets, draw the purse strings, apply the sponge, pay over the left shoulder, get whitewashed, swindle, run up bills, fly kites.
Dereliction of Duty
VB
violate, break, break through, infringe, set aside, set at naught, encroach upon, trench upon, trample on, trample under foot, slight, neglect, evade, renounce, forswear,
repudiate, wash one's hands of, escape, transgress, fail, call to account.
Dissent
VB
dissent, demur, call in question, differ in opinion, disagree, say no, refuse assent, refuse to admit, cavil, protest, raise one's voice against,
repudiate, contradict, have no notion of, differ toto caelo, revolt at, revolt from the idea, shake the head, shrug the shoulders, look askance, look askant, secede, recant.
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.