noun
inferiority complex; feeling of inferiority
A psychological term for a persistent sense of being inferior to others. Often used in self-help or everyday conversation about low self-esteem.
彼は劣勢感に悩まされている。
He is troubled by an inferiority complex.
劣勢感を克服するために、小さな成功体験を積むことが大切だ。
To overcome feelings of inferiority, it's important to accumulate small successes.
コンプレックス is a broader loanword that can refer to any complex, not just inferiority. 劣勢感 is specifically about feeling inferior.
Compound of 劣勢 (inferiority, disadvantage) and 感 (feeling, sense). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.