adj.空的；发呆的；心灵空虚的
The lyrics are completely vacuous. 歌词毫无内涵。
We would be satisfied with any draft document, however vacuous . 我们对任何草案都会感到满意，即使草案的内容非常空洞也无所谓。
Both are equally remote and vacuous. 二者都同样是遥远和空虚的。
I am not happy, because it is vacuous in my heart. 我不快乐，因为我的内心是空虚的。
adv.空地
n.空
