难于登天 Save Sign in to save words Traditional (Taiwan): 難於登天 nányúdēngtiān ㄋㄢˊ ㄩˊ ㄉㄥ ㄊㄧㄢ harder than climbing to heaven (idiom) Character by character 难(nán)difficult 于(yú)surname Yu 登(dēng)scale 天(tiān)day A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0