Deniable :: Deniable (a.) Capable of being, or liable to be, denied..
Undeniable :: Undeniable (a.) Not deniable; incapable of denial; palpably true; indisputable; obvious; as, undeniable evidence..
Undeniable :: Undeniable (a.) Unobjectionable; unquestionably excellent; as, a person of undeniable connections..