口是心非 kǒushìxīnfēi duplicitous Origin Definitions Defs Strokes Stroke Words Sentences Sents 口 kǒu nounverb speech speech; words; one's tone of voice or accent是 shì verb correct right; true; just; often used in contrast with 非 fēi心 xīn noun mind thought; intellect; the organ of thinking非 fēi wrong mistake; error; a wrong or evil deed; incorrect as opposed to 是 shì