inferiority

moral, racial, social

She struggled with feelings of social inferiority when she started at her new school.

numerical

The smaller company struggled because of its numerical inferiority compared to larger competitors in the market.

complex

She developed an inferiority complex after repeatedly failing her driving test.

~ to

Many students feel a sense of inferiority to their classmates when they struggle with math.

a feeling/sense of inferiority, a position of inferiority, a sign of inferiority

Many immigrants struggle with a sense of inferiority when learning a new language.