questionless
[adjective]
Synonyms: authentic, bona fide, genuine, indubitable, pukka, real, right, simon-pure, sure-enough, true

[TahlilGaran] English Synonym Dictionary ▲

questionless adverb & adjective. ['kwɛstʃ(ǝ)nlɪs] LME.
[from QUESTION noun + -LESS.]
A. adverb. Without question; undoubtedly. Now rare. LME.
b. adjective.
1. Not admitting of question; indubitable. M16.

2. That asks no questions, unquestioning. L19.

■ questionlessly adverb (a) undoubtedly; (b) without asking questions: M17.

[TahlilGaran] English Dictionary ▲