Feeling abashed is a type of embarrassment. People feel abashed when they're caught in a lie, or make a mistake, or suddenly feel self-conscious for some reason.

Feeling abashed isn't quite as painful as feeling ashamed, but it's close. When you're abashed, you're not feeling confident or strong: you're a little shaken up and taken aback. You feel embarrassed or chagrined. This is a word for a self-conscious, uneasy feeling––think caught with your hand in the cookie jar or your drinking out of the milk carton in the middle of the night.

Definitions of abashed

adj feeling or caused to feel uneasy and self-conscious

“felt abashed at the extravagant praise”
chagrined, embarrassed
having your composure disturbed