在暴风雪中穿着短袖出门简直是疯了。

Wearing a T-shirt in a blizzard is absolute ___lunacy.

当午夜钟声响起时，派对现场顿时陷入一片疯狂的混乱。

The party descended into ___lunacy as the clock struck midnight.

在19世纪，人们常将精神疾病误认为是疯狂的表现。

In the 19th century, people often mistook mental illness for ___lunacy.