illegitimate
unjust
unlawful
aberrant
abnormal
abominable
actionable
against the law
anarchic
anarchistic
anomic
atrocious
black-market
bootleg
chargeable
contraband
contrary to law
criminal
delinquent
deviant
disgraceful
evil
felonious
flawed
hardly the thing
ignominious
illegal
illicit
immoral
impermissible
improper
inappropriate
incorrect
indecorous
inequitable
infamous
iniquitous
injurious
irregular
justiciable
lawless
nonconstitutional
nonlegal
nonlicit
not done
not the thing
off-base
off-color
out-of-line
outlaw
outlawed
punishable
antisocial
class-action
discriminatory
dishonorable
forcible
high-handed
ill-advised
invidious
overt
reprehensible
unconstitutional
unethical
unjustifiable
unladylike
unmerited
unneutral
unrighteous
unwarrantable