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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.megalomaniacal - suffering from megalomaniamegalomaniacal - suffering from megalomania    
psychoneurotic, neurotic - affected with emotional disorder
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The Marlon Rivera-helmed satire, 'Ang Babae sa Septic Tank 3: The Real Untold Story of Josephine Bracken,' will see Eugene 'Uge' Domingo's megalomaniacal and egotistical version of herself discussing the appropriation of facts in art.
Vocal performances complement the technical excellence and Keegan-Michael Key and Jordan Peele are shameless scene-stealers as megalomaniacal fairground prizes, whose hysterical solution to an unwanted human incursion is a welltimed "plush rush".
However, I've been more a passive observer of 2018's refectory of megalomaniacal vileness, relegated to half watching it over the screen of my mobile phone and tutting quietly to myself.
Utilizing a cyclical narrative, Depth is full of tension and intrigue as Merrick, the film's protagonist, attempts to regain control of his life after he is fired and ultimately blacklisted by the megalomaniacal politician he helped elect into power.
And if your previous boss was megalomaniacal, your fear of a repeat doesn't mean (or desire for power) you should make your current leader weaker.
If the regime in Tehran thinks that it has the ability to continue as it has done for years, by funding and aiding its militias in Lebanon and Syria, unsettling the elected government in Iraq, arming and training Al Houthi rebels in Yemen, threatening to close both the Bab Al Mandab and the Strait of Hormuz, by providing succour to terrorists in Bahrain and by generally spreading sedition across this region in pursuit of its megalomaniacal and sectarian agenda, it has not learnt the lesson of these past months either.
This colourful spin-off TV series from DreamWorks Animation might be lacking Alec Baldwin's virtuoso vocal performance as the megalomaniacal infant, which carried the film to full term, but it retains the bone-dry delivery of fast-paced dialogue and pervading air of madcap fun.
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.
In his late-1960s effort to "reimagine" Robert Moses's doomed Lower Manhattan Expressway, the much-esteemed Paul Rudolph designed a futuristic concrete pyramidal structure--in places sixty stories high--that would straddle the highway and be connected by "people movers." 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.