Oxford English and Spanish Dictionary, Synonyms, and Spanish to English Translator

Meaning of megalomaniacal in English:

‘Others might view such people as demented or delusional or megalomaniacal.’

‘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.’
‘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?’