Waste of time
01
時間の無駄
an activity or situation that does not produce any benefit or value, and instead consumes time and resources that could be better utilized elsewhere
例
He realized that arguing over the small details was a waste of time.
彼は小さな詳細について議論することが時間の無駄だと気づいた。
The meeting turned out to be a waste of time since we did n't accomplish anything.
私たちは何も達成できなかったので、会議は時間の無駄だと判明しました。
