showing a strong feeling that you want to have more and more power渴望权力;权欲熏心
The megalomaniac leader finally crowned himself Emperor.这位自大狂领袖最终为自己加冕为皇帝。
There was a megalomaniac streak in him that made him believe anything was possible.他有一种自大狂的倾向,这使他相信一切皆有可能。
(specialist)suffering from a mental illness or condition in which somebody has a much greater belief in their own importance or power than is reasonable夸大狂患者