degeneration vs decadence

degeneration and decadence both are nouns.

Word	Noun	Adjective	Verb	Adverb
degeneration	Yes	No	No	No
decadence	Yes	No	No	No

As nouns, degeneration and decadence are synonyms defined as:

degeneration and decadence: the state of being degenerate in mental or moral qualities

Other synonyms of degeneration include decadency, degeneracy.

degeneration (noun)	decadence (noun)
passing from a more complex to a simpler biological form	the state of being degenerate in mental or moral qualities
the process of declining from a higher to a lower level of effective power or vitality or essential quality
the state of being degenerate in mental or moral qualities