Machiavellian rhymes with:
machivellian, machivellian, chameleon, deleon, machivellian, orwellian, alien, anatolian, aristotelian, bachailian, balian, chameleon, chilean, dalian, deleon, episcopalian, galleon, galyean, gillian, harpootlian, hegelian, herculean, holian, holien, jillian, julian, julien, karelian, kilian, lilian, lilien, lillian, lilyan, machivellian, mammalian, maximilian, milian, mongolian, napoleon, orlean, orwellian, raphalian, sicilian, stelian, st_julien, topalian, wesleyan, yulian