"decadent atmosphere" is a correct and usable phrase in written English.
It can be used to describe a space or environment that is luxurious, opulent, and indulgent. Example: The penthouse suite was adorned with velvet drapes, crystal chandeliers, and plush furnishings, creating a decadent atmosphere fit for royalty.
After all, Mr Ghannouchi lived for a couple of decades in the decadent atmosphere of Londonistan, to use a French pejorative.
The joke: His honest kindliness is continually mistaken, in the decadent atmosphere of academe, for subtle but sharp malice.
"If I became very rich tomorrow, this is where I'd shop," Mr. Mantegazza says wistfully on his way out, a final glance back at the clubby, decadent atmosphere.
You can also still smoke indoors, which may be enough of a draw for some – it certainly creates a decadent atmosphere in these strait-laced times.
In his 1939 novel, Goodbye to Berlin, Isherwood brilliantly captured the Weimar Republic's decadent atmosphere of sexual experimentation, which was heightened by a sense of looming crisis.
Formerly a lunchtime whorehouse for bourgeois businessmen, Le Baron has held on to its decadent atmosphere and developed a winning mixture of being laid-back, dark, and slightly louche a little unusual for Pariss superstraight, affluent 8th arrondissement.
The atmosphere isn't decadent; it's concentrated.
The public outcry which followed the novel's appearance – "it is a tale spawned from the leprous literature of the French Decadents – a poisonous book, the atmosphere of which is heavy with the mephitic odours of moral and spiritual putrefaction," wrote the Daily Chronicle – forced Wilde to revise the novel still further before it appeared in book form in 1891.
The atmosphere is one of decadent triumph, with ravers scampering joyfully around the ruins of something that was once sober and martial.
When the English producer Tim Goldsworthy used to think about New York, he imagined break-dancers on every corner, decadent punk rock concerts every night and an atmosphere in which countless artists were breaking boundaries in free-form musical freakouts.
His most candid series, Sami, lingered with the smell of crushed roses and leather mixed with burnt metal and wood, forging an atmosphere that is all at once decadent, ripe, and destructive.
