self-appointed
unaccredited
unlicenced
unlicensed
unofficial
actionable
against the law
anarchic
anarchistic
anomic
banned
barred
bastard
black-market
bootleg
chargeable
contraband
contrary to law
criminal
felonious
flawed
forbade
forbid
forbidden
illegal
illegitimate
illicit
impermissible
irregular
justiciable
lawless
nonconstitutional
nonlegal
nonlicit
nonpermissible
not permitted
off limits
out of bounds
outlaw
outlawed
prohibited
punishable
ruled out
taboo
tabooed
triable
unallowed
unapproved
unconstitutional
under the ban
under-the-counter
under-the-table
unlawful
clandestine
fraudulent
hasty
improper
inadvertent
large-scale
periodic
simultaneous
subsequent
unannounced
unauthorised
unnecessary
unwanted
unwarranted
voluntary
authorized
reauthorized