disobey defy ignore oppose resist contravene reject break challenge disregard flout infringe shirk violate baulk balk counteract fight overstep infract transgress condemn decline deny disallow disapprove dissuade fail neglect prevent rebuff refuse repudiate spurn withhold dissent rebel object protest dispute buck veto disagree contend nullify misbehave hinder contradict outbrave contemn argue differ persevere hold continue keep retain defend win start discount shun overlook misunderstand forget contest forbear rebut remonstrate denounce debate oppugn question refute query counter demur forbid impeach gainsay negate confront controvert disprove conflict struggle block check delay disturb encumber halt handicap harm hurt impede obstruct stop endure survive