deranged

After weeks without sleep, his behavior became completely deranged.

用法提示：deranged 是形容词，作表语，表示精神错乱的。

The movie tells the story of a deranged scientist who plots to destroy the city.

用法提示：deranged 是形容词，作定语修饰 scientist，表示疯狂的。

She thought the idea was deranged, but he insisted it could work.

用法提示：deranged 是形容词，作表语，表示精神错乱、疯狂。