退たい勢せい

noun

decline; waning fortunes; decay

Refers to a loss of power, influence, or prosperity, often used for nations, organizations, or individuals. Somewhat formal and literary.

• その政せい党とうは退たい勢せいを挽ばん回かいできなかった。

  The political party could not recover from its decline.

• 退たい勢せいにある企き業ぎょうを立たて直なおすのは容よう易いではない。

  It is not easy to turn around a company in decline.