numbskull

• n.愚か者、馬鹿者（numskullに等しい）

比喩的な使い方。

numbskull (n.)

1717, numskull, from num, old spelling of numb (adj.) + skull. Numskulled (adj.) is attested from 1706.

1. How were we to know that he was a numbskull ？

私たちはどうして彼が馬鹿だと知っているのだろうか。