someone who is not suited to a situation or who is not accepted by other people because their behaviour is strange or unusual

I didn't really know anyone at the party, so I felt like a misfit. 聚会上我谁都不认识，所以觉得有点不适应。

I was a bit of a social misfit at college because I didn't like going out at night. 大学时我是个有些不合群的人，因为我不喜欢晚上外出参加社交活动。