What does decadent mean?

Answer 1

A decade is 10 years, so decades refers to multiples of 10 years. It is a term that is generally used for a long period of time, but often less than 100 years, as then you would start using the term centuries.

Answer 2

Decadent (adjective) is a branch word from decadence, meaning: decline, failing, decay.

Sentence: The decadence of morals was one of the causes of the fall of the Roman Empire. Decadent - deteriorating, falling to lower standards

Answer 3

Unrestrained gratification; excessive self-indulgence and moral decay.