loner

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And he has succeeded partly because he is what his friends call an individualist, and others might call a loner.
而他的成功应该部分归因于他是个“个人主义者”--他的朋友这样称呼他--但也有人叫他“独行者”。
When Pam discovered Paul, in their second week of college, he was a gaunt loner who was almost as disdainful of girls as he was of alcohol and sports.
帕姆在他们大学开学第二周遇见保罗的时候，他是个瘦骨如柴、喜好独处的人，厌恶女孩就像他不喜欢饮酒和体育一样。
And we catch on (sooner than Marie) that the girl stays in the picture only because--well, there has to be a girl, to provide false suspense and give the loner hero someone to talk to.
而我们对于影片中女主角的理解也仅仅是因为电影里面必须要有个女性角色，以提供故弄玄虚的焦虑感，并且让寂寞的英雄有个人说说话。

He appears to be a loner and conspiracy theorist of a vaguely right-wing variety.
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He was considered a "lunatic" by fellow townspeople and was known as a loner.
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Although he was known to have extreme religious views, the police described him as a loner.
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If you describe someone as a loner, you mean they prefer to be alone rather than with a group of people.