nonacquaintance

n.不相识

不相识；陌生人；不熟悉的人。

名词

1、He treated me as a nonacquaintance, even though we had met before.
他把我当作陌生人，尽管我们之前见过面。
2、I felt like a nonacquaintance in the new office, as I didn't know anyone there.
在新办公室里，我感觉自己像个陌生人，因为我不认识那里的任何人。