Definition of: decadent

(di·kād′nt, dek′ə·dənt) adjective
Falling into ruin or decay.
—noun
1. One who has fallen from a high social position.
2. One in a state or process of mental or moral decay; a decadent person.
3. Specifically, a member of a school of French writers of the late 19th century characterized by their cultivation of subtle, refined, artificial qualities in subject and treatment.
—de·ca′dent·ly adverb
DECAGON