愚[yú] 基本解释：
新英汉大词典：
- 愚[yú]
- 形容词- （愚笨; 傻） foolish; stupid:
A man of great wisdom often appears slow-witted [stupid].大智若愚。
- 动词- （愚弄） make a fool of; fool:
be fooled [duped] by sb.为人所愚
- 代词- （用于自称的谦辞） I:
I do not agree.愚以为不然。
- 名词- （姓氏） a surname:
Yu Wei愚伟
以上内容来源于：《新汉英大辞典》
例句与用法：
I think he was born stupid.
Can you persuade her out of her foolish plans?
The accident happened yesterday owed to his foolishness.
She is vain and foolish, and yet people like her.
His foolish behavior led to his eventual failure.
I have to stand up listening to his criticism of my foolishness.
It would be foolish and impetuous to resign over such a trivial matter.
I felt rather foolish when I couldn't answer the teacher's question.
愚的其他解释: