Open English Wordnet
Nouns
(n)degeneracy, degeneration, decadence, decadencythe state of being degenerate in mental or moral qualities
(n)corruption, degeneracy, depravation, depravity, putrefactionmoral 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”