Presumed without analysis.
Self-evident, intuitively obvious.
Based on hypothesis and theory rather than experiment or empirical evidence.
Developed entirely from scratch, without deriving it from existing languages.
In a way based on theoretical deduction rather than empirical observation.
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.
Of, or pertaining to, the Apocrypha.