心口不一 (xīn kǒu bù yī) | Meaning: heart and mouth at variance (idiom); keeping one's real intentions to oneself | Chinese Idiom with Pinyin & Origin

duplicity · hypocrisy (idiom)口是心非kǒu shì xīn fēi

to say sth without meaning it (idiom); to speak tongue in cheek · saying one thing but meaning sth different言不由衷yán bù yóu zhōng

to say one thing but mean another · to dissimulate口不应心kǒu bù yìng xīn

graceful words, flowery speech (idiom); elegant but insincere words · cheating wheedling · dishonest rhetoric花言巧语huā yán qiǎo yǔ

heart and mouth at variance (idiom); keeping one's real intentions to oneself · saying one thing but meaning sth different