Disavow

v. t.	1.	To refuse strongly and solemnly to own or acknowledge; to deny responsibility for, approbation of, and the like; to disclaim; to disown; as, he was charged with embezzlement, but he disavows the crime. [imp. & p. p. Disavowed ; p. pr. & vb. n. Disavowing.] A solemn promise made and disavowed. - Dryden.
	2.	To deny; to show the contrary of; to disprove. Yet can they never Toss into air the freedom of my birth, Or disavow my blood Plantagenet's. - Ford.

Verb

1.

disavow - refuse to acknowledge; disclaim knowledge of; responsibility for, or association with; "Her husband disavowed her after 30 years of marriage and six children" Antonyms: avouch, avow - admit openly and bluntly; make no bones about

TO DISAVOW. To deny the authority by which an agent pretends to have acted as when he has exceeded the bounds of his authority.
     2. It is the duty of the principal to fulfill the contracts which have been entered into by his authorized agent; and when an agent has exceeded his authority, he ought promptly to disavow such act, so that the other party may have his remedy against the agent. See Agent; Principal.

abjure, assert the contrary, back down, back out, backwater, belie, climb down, contest, contradict, contravene, controvert, counter, crawfish out, cross, deny, disaffirm, disallow, disown, disprove, dispute, eat crow, eat humble pie, forswear, gainsay, impugn, join issue upon, negate, negative, not accept, not admit, nullify, oppose, recant, refuse to admit, refute, renege, renounce, repudiate, swallow, take back, take issue with, unsay, withdraw