What idioms are there to describe inferiority?

Idioms describing inferiority are as follows:

1, feel ashamed, the explanation is that I feel inferior to others and feel ashamed.

2, self-deprecating, describing too inferiority, describing inferiority, inferiority, refers to having no confidence in your own ability and not believing that you can complete it.

3. Inferiority is interpreted as self-contempt and self-abasement, and more refers to self-degradation.

4, feel ashamed, which means ugly appearance, and it is a shortcoming, because you are not as good as others and feel ashamed.

5. Broke eyebrows and bend over, which means bending over with low eyebrows. Describing inferiority is spineless and flattering.