abjure agree to differ agree to disagree assert the contrary be at cross-purposes be at variance be in dissent beg to differ belie bicker over contend about contest contradict contravene controvert counter counteract countervail counterwork cross deny differ disaffirm disagree disagree with disallow disavow disclaim discord with disown disprove dispute dissent dissent from divide on drop out fight over forswear gainsay go against impugn join issue upon join the opposition not abide not accept not admit not agree nullify oppose play at cross-purposes protest quarrel over recant refuse to admit refute renounce repudiate resist retract revoke run against run counter to secede squabble over take back take exception take issue traverse vote against withdraw withhold assent withstand wrangle over