1640s, "empty" (implied in vacuousness), from Latin vacuus "empty, void, free" (see vacuum (n.)). Figurative sense of "empty of ideas, without intelligent expression" is from 1848. Related: Vacuously.
双语例句
1. Male models are not always so vacuous as they are made out to be.
男模特儿并不总像人们说的那样愚蠢。
来自辞典例句
2. She seemed almost to be apart from herself -- vacuous duplicate only.
她似乎几乎与她自身都分离开了 - 仅仅剩下一个空虚的躯壳.
来自辞典例句
3. We would be satisfied with any draft document, however vacuous.
