CEFR C1
megalomaniac
noun
Meaning
A person who is obsessed with power and has an exaggerated belief in their own importance and abilities.
Examples
- His business partner was a classic **megalomaniac**, convinced he could conquer the world market alone.
- The novel's villain was a **megalomaniac** who dreamed of ruling the planet.
Synonyms: vain, egotistical, narcissistic, grandiose