N-UNCOUNT
平庸;平凡;普通
If you refer to the mediocrity of something, you mean that it is of average quality but you think it should be better.
例句
...the mediocrity of most contemporary literature...
大多數當代文學作品的平庸
Fashion today is sloppy mediocrity.
如今的時尚品位低下，平庸無奇。