The act or process of rejecting, disowning, or refusing to accept someone or something. Her open repudiation of the regime inspired other dissidents.
Law: A refusal or failure to perform a duty or obligation, especially the refusal to honor a contract or debt; anticipatory breach. The company's repudiation of the contract led to a lengthy legal battle.
The denial or refutation of the truth, validity, or authority of something. The scientist's repudiation of the long-held hypothesis sparked heated debate.