forgettable
🇺🇸
/fərˈɡetəbl/
🇬🇧
/fəˈɡetəbl/
not special or interesting, so you easily forget it
The movie was so forgettable that I couldn't remember the plot the next day.
这部电影太普通无趣了,以至于我第二天就想不起剧情了。