outsider

outsider
noun
  1. a person who does not belong to a particular group
    外人,圈外人
    ■a person who is not accepted by or who isolates themselves from society
    不被社会所接受的人;不愿融入社会的人
  2. a competitor, applicant, etc. thought to have little chance of success
    不大可能成功的竞争者(或申请人等)
    the winner was Beech Road, a fifty-to-one outsider.
    他开始时是个根本没有希望取得该称号的人。
英语宝典
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