"You keep using that word. I do not think it means what you think it means." —Inigo Montoya on Stephenie Meyer's thesaurus rape. Chagrin is Stephenie Meyer's favorite word, her "pet word" if you will, and she loves coming up with ways to use it never imagined by anyone with an actual grip on the English language. Inigo Montoya would be outraged. She's also invented chagrined as an adjective. WHAT COULD POSSIBLY BE WRONG WITH THAT!? The answer: everything. Christ, the way Meyer abuses uses this word, you'd have to go to dictionary.com after reading this page (I'm not kidding either).