insane

/ɪnˈseɪn/VCE📚 6577 102 2六级托福雅思
Someone who is insane is severely mentally ill. 精神病的; 精神失常的

adjective [原级]疯癫的,精神失常的;蠢极的,荒唐的

Some people simply can't take it and they just go insane.
一些人就是接受不了,于是便变得精神错乱。

in(不) + san(健全的) + e → 精神不健全的 → 精神病的
单词造句:
网友用“Insane”造句精选
He asked me what I thought and I said, "Listen, this is completely insane." 他问我是怎么想的,我说,“听着,这十分愚蠢。”
I would be insanely jealous if Bill left me for another woman. 如果比尔为了另一个女人而离开我,我会妒忌得发疯的。
He was insane when he carried out the grisly murders. 他在进行那些恐怖的谋杀时已精神错乱。