1 (with capital initial): of or pertaining to Sybarite or its inhabitants.
2: characterised by or devoted to excessive luxury; effeminately luxurious.
I came across this word in an Independent article about boutique hotels which mentions "sybaritic features such as handmade beds". Sybaris/Sybarite was an ancient Greek city of southern Italy, well-known for its magnificence and luxury. It was razed to the ground in 510 BC after losing a war against the city of Croton.