1. a person who has an obsessive desire for power or who believes they are much more important than they actually are

1. having or showing an obsessive desire for power or an inflated sense of one’s own importance

Examples

• The dictator was a classic megalomaniac who believed he could control everything.
• Her megalomaniac tendencies made it difficult for her to work with others.
• The CEO’s megalomaniac behavior alienated many employees.
• He displayed megalomaniac fantasies about ruling the world.
• The novel’s villain is portrayed as a dangerous megalomaniac.
• His megalomaniac speeches revealed his inflated ego.
• She accused him of being a megalomaniac who couldn’t accept criticism.