confused可以當名詞用嗎

不可以。

adj. 困惑的混亂的糊塗的

v. 困惑（confuse的過去式）She was becoming confused.

她開始糊塗了。

My words surprised and confused him.

我的話使他既驚訝又困惑。

I'm thoroughly confused.

我完全給搞糊塗了。

I feel really confused and wretched.

我真的感到迷惑和難過。