corruption, degeneracy, depravation, depravity, putrefaction -- (moral perversion; impairment of virtue and moral principles; "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")
depravity, turpitude -- (a corrupt or depraved or degenerate act or practice; "the various turpitudes of modern society")