The word "chagrin" has become popular lately. And it's usually used incorrectly, and usually preceeded by "much to my" . E.g., "Much to my chagrin, a tornado interrupted my ride." The word "dismay," or "disappointment" should be used here instead.

Chagrin means extreme embarrassment. It can also be used as verb. To chagrin means to embarrass. "I was chagrined to see that I got an F minus." "Much to my chagrin, Ralph noticed my panty line."