ashamed

An ashamed person feels embarrassed or guilty about something they've done.

When people say they're feeling ashamed, it's usually because they've made a mistake, said something they shouldn't have, or behaved in a way that wasn't very good. It might be about something big, like cheating on someone you care about, or something small, like accidentally hurting someone's feelings with a thoughtless comment. You can also say someone is ashamed of their past behavior, like if they used to be mean to others but have changed now. Being ashamed doesn't mean you're bad; it means you're acknowledging what you did was wrong and trying not to do it again.