a.

1. 愚蠢的，傻的[+to-v]
   a foolish person

   愚蠢的人

   How foolish I was not to have bought it.

   我沒買下它真是太傻。

   It was foolish to take the test without preparation.

   沒有準備就去應試是愚蠢的。

2. 荒謬的，可笑的
   He looked foolish in his red pants.

   他穿著紅褲子看上去真可笑。

adj.