1. immorality Sin is any lack of holiness, any defect of moral purity and truth, whether in heart or life, whether of commission or omission. "All unrighteousness is sin," 1 John v, 17. Transgression, as Synonyms: sin, crime, fault, misdeed, vice, criminality, guilt, offense, viciousness, delinquency, ill-doing, transgression, wickedness, depravity, immorality, ungodliness, wrong, evil, iniquity, unrighteousness, wrong-doing Antonyms: blamelessness, goodness, integrity, rectitude, sinlessness, excellence, holiness, morality, right, uprightness, godliness, innocence, purity, righteousness, virtue
Synonyms for immorality 
