Synonyms and related words :
Judas, Mafioso, aberrant, abnormal, abominable, actionable, against the law, amoral, anarchic, anarchistic, anomic, arraignable, arrant, at fault, atrocious, bad, bad guy, bad person, base, betrayer, black, black-market, blackguard, blamable, blameworthy, bootleg, censurable, chargeable, conscienceless, contraband, contrary to law, convict, corrupt, corrupted, crook, crooked, culpable, culprit, damnable, dark, deceiver, delinquent, depraved, desperado, desperate criminal, deviant, devious, disgraceful, dishonest, dishonorable, double-dealer, doubtful, dubious, evasive, evil, evildoer, evildoing, execrable, faulty, felon, felonious, fishy, flagitious, flagrant, flawed, foul, fraudulent, fugitive, gallows bird, gangster, gaolbird, guilty, hardly the thing, heinous, hood, hoodlum, hooligan, ignominious, ill-got, ill-gotten, illegal, illegitimate, illicit, immoral, impeachable, impermissible, implicated, improper, inappropriate, incorrect, inculpated, indecorous, indictable, indirect, infamous, iniquitous, insidious, involved, irregular, jailbird, justiciable, knave, knavish, lawbreaker, lawless, low, malefactor, malefactory, malevolent, malfeasant, malfeasor, miscreant, misfeasor, mobster, monstrous, naughty, nefarious, nonconstitutional, nonlegal, nonlicit, not done, not kosher, not the thing, off-base, off-color, offender, out-of-line, outlaw, outlawed, peccant, public enemy, punishable, questionable, quisling, racketeer, rank, reprehensible, reproachable, reprobate, reprovable, rotten, roughneck, ruffian, sacrilegious, scandalous, scofflaw, scoundrel, shady, shameful, shameless, shifty, sinful, sinister, sinner, slippery, suspicious, swindler, terrible, terrorist, thief, thug, to blame, tough, traitor, transgressor, trespasser, triable, tricky, two-timer, unallowed, unauthorized, unconscienced, unconscientious, unconscionable, unconstitutional, under-the-counter, under-the-table, underhand, underhanded, undue, unethical, unfit, unfitting, unforgivable, unlawful, unofficial, unpardonable, unprincipled, unrighteous, unsavory, unscrupulous, unseemly, unspeakable, unstatutory, unstraightforward, unsuitable, unwarrantable, unwarranted, unworthy, vicious, vile, villain, villainous, wicked, without remorse, without shame, worker of ill, wrong, wrongdoer, wrongdoing, wrongful