Adjective
non-authentic (not comparable)
Alternative form of nonauthentic
Ancient scribes made errors or alterations (such as including non-authentic additions ). Source: Internet
Jachmann (1943) argued that up to one-third of what survives is non-authentic: Ulrick Knoche (1950) deleted about hundred lines, Clausen about forty, Courtney (1975) a similar number. Source: Internet