brainsick

After weeks without sleep, he began to feel brainsick and couldn't tell dreams from reality.

用法提示：brainsick 作表语形容词，表示“精神错乱的”。

The novel tells the story of a brainsick ruler who orders his soldiers to attack the sea.

用法提示：brainsick 作定语修饰 ruler，意为“疯狂的”。

Her brainsick ideas made her friends worry that she needed medical help.

用法提示：brainsick 作定语修饰 ideas，表示“不理智的、疯狂的”。