Definition of megalomaniacal in US English:

megalomaniacal

adjective

  • See megalomaniac

    • ‘Bates manages to infect almost the entire cast and crew with his neuroses and megalomaniacal attitude.’
    • ‘She is sensuous, grasping, self-absorbed, fierce, greedy, megalomaniacal, and utterly certain that she is entitled to have her ego, her power, and her way.’
    • ‘Others might view such people as demented or delusional or megalomaniacal.’
    • ‘Dr. Evil was a stereotypical villain; the megalomaniacal pursuer of world conquest who is always foiled by Powers.’
    • ‘I'm a megalomaniacal tyrant trying to take over the world; you think I'll be swayed by some lowly henchman like you?’

Pronunciation

megalomaniacal

/ˌmɛɡ(ə)ləməˈnaɪək(ə)l//ˌmeɡ(ə)ləməˈnīək(ə)l/