刻不容缓 kèbùrónghuǎn extremely urgent Origin Definitions Defs Strokes Stroke Words Sentences Sents 刻 kè noun moment a brief interval of time; a point in time不容 bùróng verb to not allow To not permit, brook, or allow; to be impermissible or out of the question.缓 緩 huǎn to postpone to postpone; to delay; to defer or stall