Immoral, sinful, or wicked.
Meaning relationships
Synonyms: abandoned, arrant, bad, bad apple, bad seed, baleful, scurrilous, baneful, base, black-hearted, dark, deleterious, demonic, depraved, despicable, detrimental, devilish, diabolical, evil, evil-minded, facinorous, flagitious, harmful, heinous, ill-intentioned, ill-natured, immoral, incorrigible, iniquitous, iniquous, injurious, knavish, malefic, maleficent, malevolent, malicious, malign, malignant, naughty, nefarious, niddering, nidering, niding, nithing, no-good, peccaminous, pernicious, reprehensible, reprobate, satanic, scathful, sinful, sinister, sordid, sullen, ungodly, unholy, vicious, vile, villainous, wicked, wrong, aberrant, corrupt, corrupted, dirty-handed, dissolute, effete, errant, indecent, indecorous, immodest, improper, incontinent, licentious, nought, obscene, perverse, perverted, profligate, unduteous, undutiful, unethical, unjust, unprincipled, unrighteous, unseemly, unscrupulous, unworthy
Antonyms: chaste, continent, correct, upstanding, delicate, decent, decorous, desertful, deserving, dutiful, duteous, good, honest, innocent, meritorious, modest, moral, noble, right, right-minded, righteous, straight, uprighteous, virtual, virtuous, well-intentioned, whole-souled, worthy