@RexRed,
Sardanapalian(sahr-dn-uh-PEYL-yuhn), adjective:
Excessively luxurious.
Rich papers with gold borders, bronze chandeliers, mahogany engravings in the dining-room, and blue cashmere furniture in the salon, … all details of a chilling and perfectly unmeaning character, but which to the eyes of Ville-aux- Fayes seemed the last efforts of Sardanapalian luxury.
-- Honoré de Balzac,
Sons of Soil
Here, in this half-destroyed Tartar town, surrounded by steppes, he indulged himself in a Sardanapalian effulgence that beggared even his jassy Court.
-- Simon Sebag Montefiore,
Potemkin
First used in English in the 1860s, Sardanapalian is an eponym that comes from the legendary Assyrian king Sardanapal who was famous for his decadence.