Definition from Wiktionary, the free dictionary
Directly from French
extraordinaire (not comparable)
- Extraordinary; particularly skilled.
- He was a dancer extraordinaire.
Usage notes 
- Following the manner of French adjectives, and unlike most English adjectives, extraordinaire follows its subject.
- Charlie Parker, saxophonist extraordinaire, released many records.
extraordinaire (masculine and feminine, plural extraordinaires)
- extraordinary, out of the ordinary