不ふ生せい産さん的てき

na-adjective

unproductive; unfruitful

Describes activities, efforts, or periods that yield little or no useful result. Often used in formal or written contexts.

• 今日きょうは不ふ生せい産さん的てきな一いち日にちだった。

  Today was an unproductive day.

• 不ふ生せい産さん的てきな議ぎ論ろんを続つづけても意い味みがない。

  There is no point in continuing an unproductive discussion.