The phrase "a decadence of" is correct and usable in written English.
It can be used to describe a decline or deterioration in quality, morals, or culture, often in a negative context.
Example: "The novel explores the decadence of society during the late 19th century, highlighting the moral decay of its characters."
Alternatives: "a decline in" or "a deterioration of".
While Moscow's rich work off a decade of decadence, the rest of Russia is still barely earning a living.
Edge: a Decade of Decadence, a DVD documentary of Copeland's life, was released in December 2008.
How can a reader who doesn't own a private jet read such an article without feeling the decadence of a society ripe for extinction?
Punch the numbers into a telephone dial pad in a phone booth outside the bar,and a concealed door swings open to reveal a classic cocktail joint that swaggers with the decadence of a 1920s Chicago speakeasy.
A crown jewel of the Austria-Hungarian empire, Vienna is a reminder of "the decadence of the monarchy, the derangement of mankind on a very high luxurious level," says Richter.
Tutta mio padre also provided a picaresque and tragicomic account told in an eclectic style of the complete financial and physical decadence of an eccentric aristocratic family from the province of Orvieto.
In 1984, Bolivian journalist Ted Córdova Claure writes that the Hotel Bolívar stood as a monument to the decadence of Peruvian oligarchy (in Spanish: "Este hotel es un monumento a la decadencia de la oligarquía peruana").
His performance earned him a key role in Satyajit Ray's The Chess Players, a study of the decadence of India's feudal classes.
Kristen Lubben quotes one of their paeans, published in 1928, which deplores the "decadence" of a generation slipping by stages "from sly gin-guzzling to a calculated harlotry".
But it wasn't just the decadence of a tropical paradise that seduced Navy men.
