unquestionable

definition: not open to question
example: an unquestionable (or unequivocal) loss of prestige
speech part: adjective
synonyms: indisputable
definition: not counterfeit or copied
example:
speech part: adjective
synonyms: authentic bona fide veritable
definition: incapable of being questioned
example: unquestionable authority
speech part: adjective
synonyms:

unquestionable is explained and pronounced

How unquestionable is being used?