成り行き任せ なりゆきまかせ Also written 成行き任せ Meanings Noun, の-adjective leaving something to chance; drifting; (being) happy-go-lucky See also: 成り行きに任せる (なりゆきにまかせる). Kanji 成 become. Read as なる. 行 go. Read as ゆき. 任 entrust. Read as まかせる. Jinuma: Japanese Dictionary · Word lists