pseudonymous

adjective4

1. •
   Of or pertaining to a pseudonym.
2. •
   That uses a pseudonym.

   • My angle has been more positivistic, my interest arising not out of the general phenomenon of pseudonymity, but out of particular puzzles posed by particular texts assigned to one pseudonymous writer. — 2006
3. •
   Pertaining to pseudonymization.
4. •
   Fictitious.

   • The abuse of children that goes on under the pseudonymous and euphemistic titles of "intergenerational sex" and "sexual liberation." — 1984