mephistophelian
adj. 恶魔麦菲斯特般的;冷酷的;魔鬼般的(等于 Mephistophelean)
例句
He had a dark line of beard beneath his pale skin and a mephistophelian smile.
他苍白的皮肤下留着深色的胡须,并带有魔鬼似的微笑。