megalomanic

meg·a·lo·ma·ni·a

 (mĕg′ə-lō-mā′nē-ə, -mān′yə)

n.

1. A psychopathological condition characterized by delusional fantasies of wealth, power, or omnipotence.

2. An obsession with grandiose or extravagant things or actions.

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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.

Thesaurus

Adj.

1.

megalomanic - suffering from megalomania     megalomaniacal psychoneurotic, neurotic - affected with emotional disorder