blase adj.
(blah-ZAY)

adjective
Indifferent, bored, uninterested, unimpressed, or apathetic, from an excess of pleasure and enjoyment.

Etymology
From French, past participle of blaser, to cloy, perhaps from Dutch blasen to blow.
Usage
"It was a new and exciting experience for me to be with that audience at the biggest show of the season. Adolph was blase about it. As soon as the lights dimmed and the orchestra struck up the overture, Adolph turned to me and said, `Akio, goodnight.'"

These definitions are taken from www.answer.com btw.