inferiority complex
noun [ C ] uk/ɪn.fɪə.riˈɒr.ə.ti ˌkɒm.pleks/ us/ɪn.fɪr.iˈɔːr.ə.t̬i ˌkɑːm.pleks/
自卑情结，自卑感
a feeling that you are not as good, as intelligent, as attractive, etc. as other people
He's always had an inferiority complex about his height. 他对自己的身高总是有种自卑感。