mephistophelean
adj. 冷酷的；险恶而狡猾的
近义词：Mephistophelian，diabolical，diabolic，devilish，
英英释义
Adjective
- showing the cunning or ingenuity or wickedness typical of a devil;
"devilish schemes" "the cold calculation and diabolic art of some statesmen" "the diabolical expression on his face" "a mephistophelian glint in his eye"