Criminal1. (a.) Guilty of crime or sin.
2. (a.) Involving a crime; of the nature of a crime; -- said of an act or of conduct; as, criminal carelessness.
3. (a.) Relating to crime; -- opposed to civil; as, the criminal code.
4. (n.) One who has committed a crime; especially, one who is found guilty by verdict, confession, or proof; a malefactor; a felon.
Thesaurus Entries
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