adj.不能接受的；不受歡迎的

I must say I find it unacceptable. 我得說我覺得這不能接受。

In my opinion, the proposal is quite unacceptable. 在我看來，這建議是很難接受的。

The theory he put forward at the meeting was entirely at fault and was therefore unacceptable. 他在會上提出的理論完全不可靠，因此是不能接受的。

I am afraid your suggestion is unacceptable. 恐怕您的建議是不可取的。