questionless adjective 2adverb 1forms 2 adjective2 •Asking no questions; unquestioning. •(rare) Certain; indubitable; unquestionable; not admitting of question or doubt. adverb1 •(no longer used) Certainly; undoubtedly; without question.And do not you perceive a shamefull errour therein? But questionlesse you dissemble it. — 1662 formsmore questionless · most questionless