来自拉丁语ieiunus,空的，干的，字面意思为绝食，饥饿，来自PIE*ieg,献祭，牺牲，神圣的，词源同hagiography,hagiology.引申词义单调的，空洞的。比较其同源词dine,dinner.

1. We knew we were in for a pretty long, jejune evening.

我们很清楚我们注定要过一个乏味单调的漫长夜晚了。

2. They were of great service in correcting my jejune generalizations.

他们纠正了我不成熟的泛泛之论，帮了我大忙。

3. Then she was gone, leaving me in unexpectedly jejune loneliness.

于是她走了, 置我于意想不到的空虚孤独之中.

4. I detected a jejune air that had not inbed me before.

我感到一种沉闷的空气,这种感觉是以前从来没有的.