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 (mĕg′ə-lō-mā′nē-ə, -mān′yə)
1. A psychopathological condition characterized by delusional fantasies of wealth, power, or omnipotence.
2. An obsession with grandiose or extravagant things or actions.

meg′a·lo·ma′ni·ac′ n.
meg′a·lo·ma·ni′a·cal (-mə-nī′ə-kəl), meg′a·lo·man′ic (-măn′ĭk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.megalomaniacal - suffering from megalomaniamegalomaniacal - suffering from megalomania    
psychoneurotic, neurotic - affected with emotional disorder
References in periodicals archive ?
They fought not just megalomaniacal supervillains but also a government that deemed them a threat to society.
While his education instilled him with near megalomaniacal ambition, it left him unprepared for the world in which to exercise it, rendering him both over- and under-qualified for his job.
He's a leader who is megalomaniacal and pathological.
The script, co-written by Falconer and Warren Davis II, resembles a checklist of 007 motifs: an emotionally scarred hero (Dominic Cooper), a megalomaniacal nemesis (Thomas Kretschmann) with a loopy plan to kill millions, car chases, gadgets, gratuitous destruction and groansome one-liners.
If even a portion of this megalomaniacal project had come to fruition, the buildings, with shapes that call to mind unchecked crystal growth, would have been hideous, and the manifest disdain for air, sunlight, and sky would have warranted criminal charges for the architect.
His greatest creation was himself, "Walt Whitman, a kosmos," which means that everything he wrote that speaks of himself and his language and ideas contributes to the marvelously cosmic and megalomaniacal concept and can hardly be dismissed as minor.
95) concludes an arc in which turn-of-the-century agents are caught between a woman with psychic powers and a malicious alternate personality, the obsessive father who believes that the only way to stop her alter ego is to kill her, and her megalomaniacal grandfather.
As the countdown to disaster begins, 007 heads to Jamaica, where he encounters the beguiling Honey Ryder and confronts the megalomaniacal villain at his HQ.
After 500 years of incarceration in the Spirit Realm, megalomaniacal yak Kai (voiced by JK Simmons) steals the chi of every kung fu master, and only the Dragon Warrior - overweight dumpling-obsessed panda Po (Black) - can bring his reign of terror to an end.
Tayyipism is all about Erdogan and he wants Turkey to be a manifestation of his self-serving, megalomaniacal character.
Throughout all of the mayhem, players will experience Jack's rise to power and witness him becoming the megalomaniacal tyrant fans loved to hate in Borderlands 2.
He's been crazy, he's been megalomaniacal, he's been contrite, he's been self-loathing, he's been whimsical, he's been human, he's been a leviathan," Collins told (http://www.