THESAURUS
renege
abandon, abjure, abolish, abrogate, annul, apostatize, back down, back out, backpedal, backwater, beg off, cancel, climb down, countermand, counterorder, crawfish out, cry off, default, defect, degenerate, deny, depart from, desert, disannul, disavow, discard, disclaim, disown, do away with, drop out, eat crow, eat humble pie, evacuate, forsake, forswear, go back on, invalidate, jettison, jilt, leave, leave behind, leave flat, make void, maroon, nullify, override, overrule, pull out, quit, quit cold, recall, recant, renegade, renounce, repeal, repudiate, rescind, resile, retract, reverse, revoke, say goodbye to, set aside, stand down, suspend, swallow, take back, take leave of, throw over, turn against, turn traitor, unsay, vacate, void, waive, welsh, withdraw, write off