refuse, decline, turn down, spurn, rebuff, dismiss, repudiate, veto, discard, disallow, nix, shoot down
repudiate - reject - deny - disclaim - renounce - wash one’s hands of - distance oneself from - abjure
To disavow means to deny any knowledge of, responsibility for, or connection with something, often publicly and explicitly. It is commonly used when a person, organization, or government wants to distance itself from an action, statement, or belief that is seen as wrong, controversial, or harmful. Disavowing can involve formally rejecting support, refusing to be associated with someone’s behavior, or declaring that previously assumed obligations or commitments are no longer accepted. The term is frequent in legal, political, and public relations contexts, where clear separation from actions or views is important.