- [고집쟁이] a man of self-assertion
- [외톨이] a meverick; a loner; a lone wolf; someone ostracized.
Today's meaning of the expression is different from its original meaning, as the Chinese characters show:
Originally, 獨不將軍(독불장군) meant, "one cannot become a general by oneself," which implies that a person needs "people skills" to succeed. Koreans seem to have taken that piece of good advice and changed it into a noun.