열등감이 · 열등감을
inferiority complex, sense of inferiority
Example
그는 형에 대해 열등감을 가지고 있어요.
He has an inferiority complex about his older brother.
Word parts
열 inferior+등 rank, grade+감 feeling
Literally 'the feeling of being lower in rank'.
Good to know
Pronounced [열뜽감] — ㄷ becomes tense after ㄹ in Sino-Korean words.