chagrin|chagrined

他因迟到会议而面露懊恼。

He couldn't hide his ___chagrin after arriving late for the meeting.

他因考试不及格而感到懊恼和羞愧。

He felt ___chagrined after failing the exam.

她因为忘记朋友的生日而感到非常懊恼。

She was ___chagrined by forgetting her friend's birthday.