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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.megalomanic - suffering from megalomaniamegalomanic - suffering from megalomania    
psychoneurotic, neurotic - affected with emotional disorder
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References in periodicals archive ?
Digital tomorrow, disc January 29 Taron Egerton and Colin Firth return as operatives of the British spy group Kingsman to team up with US allies and take on Julianne Moore's megalomanic drug dealer.
Only Julianne Moore, as a megalomanic drug dealer holding the world to ransom, survives with any credit.
With plenty on offer in both, here are 10 things to top your list of things to do: 1 PALACE OF THE PARLIAMENT, BUCHAREST THE second biggest building in the world (after the Pentagon in the USA), was commissioned and built under the megalomanic communist dictator Nicolae Ceausescu.
He then realized that the deranged, paranoid, possessed and megalomanic was not confined to the SA but was an essential part of Nazism.
The era of the megalomanic banker is over, says Acket.
What India did not contend with was the charismatic nature of Prabakaran and his megalomanic ideology that enabled him to turn his terror outfit into a cult terrorist group.
They even gave this arrogant megalomanic a knighthood.
This isn't, of course, always a good thing, particularly if the chef is a ham-fisted egotist with megalomanic tendencies.
But in view of its contemporary nature, of the otherwise difficult-to-explain deteriorating relationship between Hasan and his closest supporters among the amirs, and of the well-known material result of those policies--his megalomanic religious complex in Cairo at the foot of the citadel (the largest of premodern Cairo)--it is a pertinent observation and an explanation that cannot be easily dismissed.