Translation of "Prideful" in Japanese

You shouldn't be so prideful.

君はプライドを押しとどめるべきだ。

- You shouldn't be so prideful.
- You should suppress your pride.

君はプライドを押しとどめるべきだ。

With your ability it should be a doddle, but please don't be prideful of that but first apply yourself dilligently with everyone in your class.

君の実力なら楽勝だとは思うが、それに驕らず、まずはクラスのみんなと切磋琢磨していって欲しい。