also: はなじらむ
godan verb (-mu), intransitive verb
look daunted; look embarrassed; be disappointed
Describes a visible reaction of discouragement, embarrassment, or disappointment, often when one's expectations are not met or one feels out of place. The verb is intransitive and typically used with a person as the subject.
彼はその場の雰囲気に鼻白んで、何も言えなかった。
He looked daunted by the atmosphere and couldn't say anything.
期待していた反応がなくて、少し鼻白んだ。
I was a bit disappointed when I didn't get the reaction I expected.