来自拉丁语inanis,空的，虚无的，可能来自in-,不，非，-anis,一，词源同one.引申词义空无一物的，无意义的，愚蠢的。

1. He always had this inane grin.

他总是这样傻傻地咧嘴笑。

2. Such comments are inane because they don't help us solve our problem.

这种评论纯属空洞之词,不能帮助我们解决问题.

3. She started asking me inane questions.

她开始问我愚蠢的问题。

4. She made up her mind that their lives were, though luxurious, inane.

她坚决相信,他们的生活虽然奢侈, 但很空虚.

5. Theories deviating practices are inane , while practices deviating theories are blindfold.

脱离实践的理论是空泛的, 脱离理论指导的实践是盲目的.