Old English unwis, from un- (1) "not" + wise (adj.). Similar formation in Middle Dutch onwijs, Old High German unwis, German unweise, Old Norse uviss, Gothic unweis.
权威例句
1. Blake could see he had needled Jerrold, which might be unwise.
布莱克看得出他已经惹怒了杰罗尔德,这也许并不是什么明智之举。
2. I think this is extremely unwise.
我觉得这种做法极不明智。
3. It would be unwise to expect too much.
期望过高是不明智的。
4. It would be unwise to comment on the situation without knowing all the facts.