一いち了りょう簡かん

noun

at one's own discretion; on one's own judgment

Used when someone decides or acts based on their own judgment, often without consulting others. Commonly appears in the adverbial phrase 一了簡に.

• 彼かれは一いち了りょう簡かんにその計けい画かくを進すすめた。

  He proceeded with the plan at his own discretion.