low self-esteem
poor self-esteem

The kids I worked with all had very low self-esteem.

In some children low self-esteem does not seem to show.

In fact, even people with very low self-esteem want to be loved.

Low self-esteem makes him try to hurt other people so he can feel strong.

She has low self-esteem as a result of these tests.

Girls in high school also tend to have lower self-esteem do to body image.

Low self-esteem limits a person's ability to do well in the world.

Individuals with a low social status generally have a lower self-esteem.

It is no wonder that young women have such low self-esteem.

Physical abuse may lead to low self-esteem and other mental problems.