The Oxford Thesaurus An A-Z Dictionary of Synonyms - sin n.

1) trespass, transgression, offence, wrong, impiety, misdeed, profanation, desecration, iniquity, evil, devilry, sacrilege, crime, infraction, misdeed, dereliction, infringement, violation, misdemeanour, fault, foible, peccadillo: How many sins have been committed in the name of righteousness! It's a sin to tell a lie. The seven deadly sins are anger, covetousness, envy, gluttony, lust, pride, and sloth. 2) wickedness, sinfulness, vice, corruption, ungodliness, badness, evil, wrongfulness, iniquity, iniquitousness, immorality, depravity, impiety, irreverence, impiousness, sacrilege: His brother Edmund was conceived in sin, and sin ruled his entire life. --v. 3) transgress, offend, fall (from grace) , lapse, go wrong, stray, go astray, err, Biblical or archaic trespass: Strictly speaking, we can sin only against God.