One that is decadent, or deteriorating; esp., one characterized by, or exhibiting, the qualities of those who are degenerating to a lower type; -- specif. applied to a certain school of modern French writers.
As societies grow decadent, the language grows decadent, too. Words are used to disguise, not to illuminate, action: you liberate a city by destroying it. Words are to confuse, so that at election time people will solemnly vote against their own interests. Gore Vidal
The decadent international but individualistic capitalism in the hands of which we found ourselves after the war is not a success. It is not intelligent. It is not beautiful. It is not just. It is not virtuous. And it doesn't deliver the goods. John Maynard Keynes