anonymous不用于比较等级。

用作定语
▲～+n.
It is an anonymous letter.这是一封匿名信。
An anonymous benefactor tried to abstract this story for a book report.一名不愿透露姓名的捐助者试写出这篇故事的梗概,以供写书评使用。
用作表语
▲S+be+～
The writer wishes to remain anonymous.作者希望姓名不公开。
The carriage was pitch dark, and it was anonymous.车厢里黑洞洞的，谁也认不出谁来。

［同义词］   impersonal, nameless
［反义词］   distinctive, named
［词源］＜希腊语anonumos(匿名的)