villainous evil nefarious sinful vile wicked iniquitous atrocious detestable hateful vicious diabolical heinous outrageous bad criminal fiendish foul reprehensible unlawful abominable black dark depraved despicable immoral mean monstrous odious rotten shocking barbarous base contemptible cruel degenerate diabolic execrable felonious horrible illegal illicit infamous lawless murderous terrible wrong corrupt debased illegitimate crooked dissolute ignoble indictable inhuman reprobate scoundrelly sordid transgressing bent dirty dishonest dishonorable dishonourable roguish ruffianly shady underhand unprincipled unscrupulous beastly rascally stinking thievish unethical unrighteous unsavoury unsavory warped dastardly egregious flagitious culpable deplorable disgusting knavish loathsome low maleficent obnoxious offensive peccant scandalous undesirable unpleasant shameful disgraceful ignominious disreputable discreditable