unquestionable
AdjectiveWordNet 3.0
Adjective (3)
- incapable of being questioned“unquestionable authority”
- not counterfeit or copied“an authentic signature”“a bona fide manuscript”“an unquestionable antique”“photographs taken in a veritable bull ring”Synonyms: authenticbona fideveritable
- not open to question“an unquestionable (or unequivocal) loss of prestige”
Webster's Dictionary (GCIDE)
Unquestionable \Un*ques"tion*a*ble\, a.
1.Not questionable; as, an unquestionable title. [1913 Webster]
2.Not inviting questions or conversation. [R.] --Shak. [1913 Webster] -- Un*ques"tion*a*bly, adv. [1913 Webster]