numbskull /ˈnʌmˌskʌl/ (numbskulls)

• 1.  

  N-COUNT（可数名词） If you refer to someone as a numbskull, you mean that they are very stupid. 笨蛋 [非正式，老式]

  例：

  How were we to know that he was a numbskull?

  我们怎么会知道他是个笨蛋呢？