1. A feeling of annoyance, embarrassment, or disappointment
Much to his chagrin, he discovered he had failed the exam.
Para seu grande desgosto, descobriu que tinha reprovado no exame.
2. To cause someone to feel annoyed, embarrassed, or disappointed
It chagrined her to realize she had made such a silly mistake.
Desgostou-a perceber que havia cometido um erro tão tolo.