なすがまま

expression

at the mercy of; as one is led by

Describes a situation where someone or something is left to the will, actions, or forces of another, without resistance. Often used with verbs like される or 任せる.

• 彼かれは運うん命めいのなすがままに生いきた。

  He lived at the mercy of fate.

• 風かぜのなすがままに帆ほを任まかせた。

  They let the sail be at the mercy of the wind.