n.瘋狂；精神錯亂；荒唐

Genius is but one remove from insanity. 天才與瘋狂之間只有毫厘之差。

Love: a temporary insanity curable by marriage. 愛情：可以由婚姻治愈的暫時的瘋狂。

In his defense he alleged temporary insanity. 在答辯中，他提出短暫的精神錯亂為借口。

There was a streak of insanity in the family. 這個家族有精神錯亂的傾向。

It would be sheer insanity to attempt the trip in such bad weather. 天氣這么糟糕還要去旅行，太荒唐了。