leper
/ˈlepə(r)/noun
1- a person suffering from leprosy麻风病人。
1.1
- a person who is avoided or rejected by others for moral or social reasons（因道德或社会原因）被孤立者, 被排斥者：
the story made her out to be a social leper.
这种传闻将她说成是一个遭社会排斥的人。
词源
late Middle English: probably from an attributive use of leper 'leprosy'， from Old French lepre, via Latin from Greek lepra, feminine of lepros 'scaly'， from lepos, lepis 'scale'.