megalomanic

/ˌmɛɡəloʊˈmænɪk/
adjective
  1. Having or showing an obsessive desire for power, control, or greatness.
    • The film's villain was a megalomanic scientist who wanted to control the weather.
    • Her megalomanic plans to take over the company alienated her coworkers.
    • The dictator's megalomanic speeches frightened neighboring countries.
noun
  1. A person who has an obsessive desire for power, control, or greatness.
    • History is full of megalomanics who caused great suffering.
    • The board worried that the new CEO was a megalomanic who would ruin the company.
    • In the story, the megalomanic tried to take over the kingdom.
What does "megalomanic" mean? | whatsthatwordmean | whatsthatwordmean