daft

他提出了一个愚蠢的主意，说我们可以用勺子挖一条隧道。

He came up with the ___daft idea that we could dig a tunnel with spoons.

她发现自己穿着浴袍把自己锁在外面后，觉得自己蠢透了。

She felt ___daft after realizing she had locked herself out wearing only a bathrobe.

明知机场已经关闭还顶着暴风雪开车赶过去，简直是犯傻。

It seemed ___daft to drive through the snowstorm when the airport was already closed.