自卑 (zì bēi): มีความนับถือตนเองต่ํา

Because she had a birthmark on her face, she felt inferior from a young age and didn't dare lift her head in front of others.

Seeing that all his classmates had found good jobs, he felt more and more inferior, and even began to doubt his own abilities.

The teacher encouraged him not to feel inferior just because he failed one exam, and to believe that he could improve.

He came from a poor family, but he never felt inferior and always faced everyone with confidence.

His parents often compared him with the neighbor's child, which made him become very insecure.