Degeneration
Part of speech: noun
Definition: The act or state of growing worse, or the state of having become worse; decline; degradation; debasement; degeneracy; deterioration. That condition of a tissue or an organ in which its vitality has become either diminished or perverted; a substitution of a lower for a higher form of structure. A gradual deterioration, from natural causes, of any class of animals or plants or any particular organ or organs; hereditary degradation of type. The thing degenerated.
Decadence
Part of speech: noun
Definition: A state of moral or artistic decline or deterioration; decay
Example sentence: The difference between our decadence and the Russians' is that while theirs is brutal, ours is apathetic.