Word: 人心难测 (rénxīnnáncè) Traditional: 人心難測 人心难测 dictionary entry rénxīnnáncè hard to fathom a person's mind (idiom) Full dictionary entry for 人心难测 Example sentences using 人心难测 2 sentences, showing page 1 of 1. 人心难测，海水难量 rénxīnnáncè, hǎishuǐnánliáng hearts are hard to fathom, seawater is hard to measure 风云多变,人心难测 fēngyún duōbiàn,rénxīnnáncè winds and clouds change often, human hearts are hard to fathom