According to dictionary dot com...
1 - Worn out; wearied: “My father's words had left me jaded and depressed” (William Styron).
2 - Dulled by surfeit; sated: “the sickeningly sweet life of the amoral, jaded, bored upper classes” (John Simon).
3 - Cynically or pretentiously callous.
Gay virgin, of the cult of the virgins, and coworker have both called me jaded. Hmmm...I guess with that first definition, sometimes I am.