If you repudiate something or someone, you show that you strongly disagree with them and do not want to be connected with them in any way. Leaders urged people to turn out in large numbers to repudiate the violence = denounce + repudiation repudiations re·pu·dia·tion his public repudiation of the conference decision. = denunciation
refuse to acknowledge, ratify, or recognize as valid; "The woman repudiated the divorce settlement" reject as untrue, unfounded, or unjust; "She repudiated the accusations" refuse to recognize or pay; "repudiate a debt