1823, "garment which does not fit the person for whom it was intended;" see mis- (1) + fit (n.1). Meaning "person who does not fit his environment" is attested from 1880.
例文
1. He always feel a bit of a misfit in the business world.
彼はいつも自分がビジネス界に適応していないと感じている。
2.I have been made to feel a social and psychological misfit for not wanting children.
子供が欲しくないので、社会的、心理的に他人としっくりこない自分を感じさせます。
3.In either case,the person such as herself was a misfit .