难以启齿 nányǐqǐchǐ to find it hard to speak about something Origin Definitions Defs Strokes Stroke Words Sentences Sents 难以 難以 nányǐ adverb hard to difficult to do; hard to (predict, imagine, etc.)启齿 啟齒 qǐchǐ to open one's mouth To open one's mouth to start talking; often used when having something difficult to say or when asking for a favor from someone.