outsider (who is not part of a particular group) · loner, outsider (who is socially awkward) · outcast, leper, castaway, pariah (one that has been excluded from a society or system, a pariah)
köken: Wasei kango: Calque of Dutch dwaalster (literally “wander star”), composed as a compound of 惑 (waku, “to move about confusedly, to wander”) + 星 (sei, “star”). Probably related to 熒惑 (MC hweng hwok). Coined in 1792 by Dutch-Japanese translator Motoki Yoshinaga in his 太陽窮理了解説 (Taiyō Kyūri Ryōkai Setsu, “Theory of Understanding on the Natural Study of the Sun”), a translation of Copernicus's De…
dark horse (someone who possesses talents or favorable characteristics that are not known or expected by others) · Used other than figuratively or idiomatically: see czarny, koń.