Synonyms and related words :
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, illegitimate, illicit, impermissible, improper, inappropriate, incorrect, indecorous, inequitable, infamous, iniquitous, irregular, justiciable, lawless, nonconstitutional, nonlegal, nonlicit, not done, not the thing, off-base, off-color, out-of-line, outlaw, outlawed, punishable, sacrilegious, scandalous, shameful, shameless, sinful, terrible, triable, unallowed, unauthorized, unbalanced, unconstitutional, under-the-counter, under-the-table, undeserved, undue, unequal, unequitable, uneven, unfit, unfitting, unjust, unlawful, unmeet, unmerited, unofficial, unrighteous, unrightful, unseemly, unstatutory, unsuitable, unwarrantable, unwarranted, wicked, wrong