斩钉截铁zhǎndīngjiétiěTop 35000Meanings1. (lit.) to chop the nail and slice the iron (idiom)2. (fig.) resolute and decisive; unhesitating; categoricalCharacters used斩to behead钉nail截to cut off铁ironExamples1我wǒ斩钉截铁zhǎndīngjiétiě地de拒绝jùjué了le。I flatly refused.