depravity

(noun) moral perversion; impairment of virtue and moral principles. Synonyms: corruption, degeneracy, depravation, putrefaction. Examples: "The luxury and corruption among the upper classes." "Moral degeneracy followed intellectual degeneration." "Its brothels, its opium parlors, its depravity." "Rome had fallen into moral putrefaction."

(noun) a corrupt or depraved or degenerate act or practice. Synonyms: turpitude. Example: "The various turpitudes of modern society."