斩钉截铁

zhǎndīngjiétiě

HSK 7

斩钉截铁 — zhǎndīngjiétiě

1. resolute and decisive; unhesitating; categorical

   他说话很斩钉截铁，不会含糊其辞。 tā shuōhuà hěn zhǎndīngjiétiě búhuì hánhúqící — He speaks in a resolute, categorical way and never equivocates.