心术不端

Explanation: Carefully indecent; ill-intentioned. 　　Source: Ming Feng Meng, "Yu Shiming words" Mo JI ​​XXVII funny that just a wealth today, but forget the lowly season, his wife funded the famous spring water into a credit, it was his intention at the misconduct. " 　　Examples: A little while, I saw put on a back counter Qi Xin, intentionally seek evil, pain and tears lookin triangle, a ~ the Explorer Ma Zhaoxian to. ★ Qing Shi Yukun "San Xia Wu Yi," eighty-third back Thesaurus:  with hidden intent, Wolf son Beast, harbour evil design