艰苦卓绝 jiānkǔzhuójué extraordinarily arduous Origin Definitions Defs Strokes Stroke Words Sentences Sents 艰苦 艱苦 jiānkǔ adjective arduous difficult and hard; involving great struggle or physical hardship卓绝 卓絕 zhuójué unsurpassed extraordinary; surpassing all others; peerless