Fin-de-siecle

[fan duh sye-kluh] /fɛ̃ də ˈsyɛ klə/ French.

noun
1.
the end of the 19th century.
adjective
2.
Sometimes, fin-de-siècle. of, relating to, or characterized by concepts of art, society, etc., associated with the end of the 19th century.
/fɛ̃ də sjɛklə/
noun
1.
the end of the 19th century, when traditional social, moral, and artistic values were in transition
adjective
2.
of or relating to the close of the 19th century
3.
decadent, esp in artistic tastes
adjective

pertaining to the end of the 19th century, esp. its fashions, art, literature
Word Origin

French ‘end of the century’
adj.

1890, from French fin de siècle “end of century,” phrase used as an adjective. At the time it meant “modern;” now it means “from the 1890s.” “App. first in title of a comedy, Paris fin de siècle, produced at the Gymnase, Feb. 1890” [Weekley]. French siècle “century, age” is from Latin saeculum (see secular).
fin de siècle [(fann duh see-ek-luh)]

The end of the nineteenth century; the phrase is French for “end of the century.” Fin de siècle is particularly used to describe the period’s self-conscious artistic movements and a sophisticated despair that became popular at the time. Oscar Wilde is one of the best-known fin-de-siècle figures.