D defs.my
Entry 1 sense Webster, 1913

Mephistophelean

· Meph·is·to·phe·le·an · IPA
01 prop. a. Pertaining to, or resembling, the devil Mephistopheles, “a crafty, scoffing, relentless fiend;” devilish in character or aspect; crafty; sh…
  1. 1.
    Pertaining to, or resembling, the devil Mephistopheles, “a crafty, scoffing, relentless fiend;” devilish in character or aspect; crafty; showing cunning or ingenuity or wickedness; as, a mephistophelean glint in his eye.
Syn. devilish, diabolic, diabolical, mephistophelean.