noun, noun or participle which takes 'suru', intransitive verb
blushing with embarrassment; feeling ashamed and flushed
Literary or formal word for blushing from shame or embarrassment. Often used in the pattern 愧赧に堪えない (きたんにたえない), meaning 'cannot help blushing with shame'.
自分の失態を思い出し、愧赧に堪えなかった。
Remembering my blunder, I couldn't help blushing with shame.
彼は愧赧
He couldn't hide his blush of embarrassment.