disbelieve[dis′bə lēv′, dis′-]
to refuse to believe (in)
verbdis·be·lieved, dis·be·liev·ing, dis·be·lieves
To refuse to believe or accept; reject: There is no reason to disbelieve his story.
To withhold or reject belief.
(third-person singular simple present disbelieves, present participle disbelieving, simple past and past participle disbelieved)