mediocre
平凡な、二流の、あまり良くない、可もなく不可もない
Ex
- I did not study when I was in college, my grades were mediocre.
- The movie was not good, it was not bad, it was just mediocre.
Reference source
- https://eow.alc.co.jp/search?q=mediocre
- https://hinative.com/ja/questions/2185490