'Fin de siecle' definitions:

Definition of 'fin de siecle'

(from WordNet)
adjective
Relating to or characteristic of the end of a century (especially the end of the 19th century); "fin de siecle art"

Definition of 'Fin de siecle'

From: GCIDE
  • Fin de siecle \Fin` de si[`e]"cle\ [F.] Lit., end of the century; -- mostly used adjectively in English to signify: belonging to, or characteristic of, the close of the 19th century. At that time the phrase was also intended to imply "modern" or "up-to-date;" as, fin-de-si[`e]cle ideas.
  • Note: As the twentieth century comes to a close, the meaning may change. [Webster 1913 Suppl. +PJC]