re·pu·di·ate /ri-'pyü-dē-ˌāt/ vt -at·ed, -at·ing: to disavow or reject an obligation (as a debt) or duty (as performance under a contract); specif: to indicate an inability or unwillingness to perform as promised under (a contract)re·pu·di·a·tor /-ˌā-tər/ n
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.
abandon, abdicate, abjure, abnegate, abolish, abrogate, cancel, change sides, contradict, contravene, countermand, declare null and void, decline, default, demur, deny, disallow, disannul, disavow, disbar, discard, disclaim, dishonor, dissent, dissolve, exclude, forswear, negate, neglect, nullify, override, overrule, proscribe, protest, recant, refuse to accept, refuse to acknowledge, reicere, reject, renounce, repeal, repudiare, retract, reverse, revoke, set aside, spurn, withdraw
associated concepts: repudiate a cause of action, repudiate a contract
abandon (relinquish), abolish, abrogate (annul), abrogate (rescind), adeem, annul, answer (reply), cancel, challenge, condemn (blame), contemn, contradict, controvert, cross (disagree with), decline (reject), default, defect, demur, deny (contradict), deprecate, differ (disagree), disaccord, disaffirm, disagree, disallow, disapprove (condemn), disapprove (reject), disavow, disclaim, disdain, dishonor (refuse to pay), disinherit, disobey, disoblige, disown (deny the validity), disown (refuse to acknowledge), dissent (withhold assent), except (object), exclude, forfeit, forswear, gainsay, ignore, invalidate, leave (allow to remain), negate, nullify, oust, overrule, picket, prohibit, proscribe (prohibit), protest, rebuff, rebut, recall (call back), recant, refuse, refute, reject, renounce, repel (drive back), repulse, rescind, resign, revoke, secede, set aside (annul), spurn, waive
Burton's Legal Thesaurus. William C. Burton. 2006
v.To deny an obligation or refuse to perform a duty, such as that required by a contract; to deny that something is valid; to refuse to accept something.n.repudiation
The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. Amy Hackney Blackwell. 2008.