成语名称:斩钢截铁:成语近义: 斩钉截铁(zhǎn dīng jié tiě):斩:砍断;截:切断。砍断钉子切断铁。比喻做事;说话坚决果断。斩钉切铁(zhǎn dìng qiē tiě):同“斩钉截铁”。成语反义: 拖泥带水(tuō ní...