Antonyms of adj apocryphal

1 of 2 senses of apocryphal

Sense 1
apocryphal -- (being of questionable authenticity)

INDIRECT (VIA questionable) -> unquestionable -- (incapable of being questioned; "unquestionable authority")

Similarity of adj apocryphal

2 senses of apocryphal

Sense 1
apocryphal -- (being of questionable authenticity)
       => questionable (vs. unquestionable) -- (subject to question; "questionable motives"; "a questionable reputation"; "a fire of questionable origin")

Sense 2
Apocryphal -- (of or belonging to the Apocrypha)