DuckCorp Dico

Found one definition

1.                 From fr.wiktionary.org:
                   
   
   
                   
                     
   [en]
   
   ** [en]
   
   *** [étymologie]
    [en]
   *** [adjectif]
   UNRUFFLED
   
    1. Serein .
   **** [synonymes]
   
    - calm
    - clear
    - fine
    - peaceful
    - placid
    - serene
    - untroubled