machiavelian
Mach`i*a*vel"ian, a. Etym: [From Machiavel, an Italian writer, secretary and historiographer to the republic of Florence.] Defn: Of or pertaining to Machiavel, or to his supposed principles; politically cunning; characterized by duplicity or bad faith; crafty. Mach`i*a*vel"ian, n. Defn: One who adopts the principles of Machiavel; a cunning and unprincipled politician.