1. (noun)degeneracy, degeneration, decadence, decadency the state of beingdegenerate in mental or moral qualities
2. (noun)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"