unquestionable /ʌnˈkwɛs.t͡ʃən.ə.bl̩/ adjective1 •Undeniable, obvious.See the frowardnesse of this Man, he would perswade us that the Succession and divine Right of Bishopdom hath bin unquestionable through all Ages — 1641 formsmore unquestionable · most unquestionable