(v. t.) To contradict; to deny; to controvert; to dispute; to forbid.

abjure assert the contrary be contrary to belie call into question challenge combat contest contradict contravene controvert counter cross deny disaffirm disallow disavow disclaim disown disprove dispute fight forswear impugn join issue upon negate negative not accept not admit nullify oppose oppugn rebut recant refuse to admit refute reject renounce repudiate resist retract revoke take back take issue with traverse withstand