成なり行ゆき任まかせ

noun, noun which may take the genitive case particle 'no'

leaving to chance; drifting; happy-go-lucky

Describes an attitude or situation where one does not actively control the outcome, but lets events take their own course. Often used with 〜の or 〜にする.

See also: 成り行きに任せる (なりゆきにまかせる)

• 彼かれは成なり行ゆき任まかせの人じん生せいを送おくっている。

  He lives a life of drifting, letting things take their own course.

• 計けい画かくを立たてずに、成なり行ゆき任まかせで旅りょ行こうすることにした。

  We decided to travel without a plan, just going with the flow.