THESAURUS
disown
abjure, assert the contrary, back down, back out, backwater, belie, brush aside, chuck, chuck out, climb down, contemn, contest, contradict, contravene, controvert, counter, crawfish out, cross, cut off, decline, deny, despise, disaffirm, disallow, disapprove, disavow, discard, disclaim, discount, disdain, disendow, disherison, disinherit, dismiss, dispossess, disprove, dispute, disregard, disseise, eat crow, eat humble pie, evict, except, exclude, expropriate, foreclose, forswear, gainsay, ignore, impugn, join issue upon, not accept, not admit, nullify, oppose, pass by, pass up, push aside, rebuff, recant, refuse, refuse to admit, refuse to consider, refute, reject, renege, renounce, repel, repudiate, repulse, retract, revoke, scout, shove away, spurn, swallow, take back, take issue with, throw away, throw out, turn away, turn out, unsay, waive, withdraw
ROGET THESAURUS
disown
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.