Apocryphal
Part of speech: adjective
Definition: Of, or pertaining to, the Apocrypha. Of doubtful authenticity, or lacking authority; not regarded as canonical. Of dubious veracity; of questionable accuracy or truthfulness; anecdotal or in the nature of an urban legend.
Questionable
Part of speech: adjective
Definition: Problematic; open to doubt or challengeOf dubious respectability or morality
Example sentence: The tendency of modern scientific teaching is to neglect the great books, to lay far too much stress upon relatively unimportant modern work, and to present masses of detail of doubtful truth and questionable weight in such a way as to obscure principles.