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 (mŏn′ə-mā′nē-ə, -mān′yə)
1. Pathological obsession with one idea or subject.
2. Intent concentration on or exaggerated enthusiasm for a single subject or idea.

mon′o·ma′ni·ac′ (-mā′nē-ăk′) n.
mon′o·ma·ni′a·cal (-mə-nī′ə-kəl) adj.
mon′o·ma·ni′a·cal·ly adv.
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.monomaniacal - obsessed with a single subject or ideamonomaniacal - obsessed with a single subject or idea
psychoneurotic, neurotic - affected with emotional disorder
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
It is probable that both these representations were of ex post facto origin; the young gentleman (whose expressive name was Sparkler) being monomaniacal in offering marriage to all manner of undesirable young ladies, and in remarking of every successive young lady to whom he tendered a matrimonial proposal that she was
He might be political box office gold to some -- witness Nadine Dorries' monomaniacal support for the Johnson project, for example -- but others reckon him a chancer, motivated entirely by self-interest.
Islamophobia was nurtured by Stephen Bannon and other "monomaniacal" and "trash-talking" Islamophobes.
It's not clear that work so powerful and so monomaniacal is best seen collected, as it is here--the cumulative glumness of sitters and setting makes it seem, for all its restless exploration, repetitive and claustrophobic.
But the resulting monomaniacal focus on academia often causes them to miss out on the burgeoning universe of rewarding, lucrative private-sector jobs, and instead consigns them to being low-paid adjuncts or precarious postdocs as their student loans go unpaid.
Thereafter, it quickly becomes clear that Latanoprost Variations is an intensely monomaniacal text.
Everything Zuckerberg needed to be successful, his gawky sociability and monomaniacal pursuits of profit and technology, were benefits for a fledgling social media company rising to worldwide muscle. But now those very same qualities prove to be burdens.
But he has turned out to be an infirm leader who looks the other way when injustice is committed by his close associates, who disdains the poor, who defends and praises corruption when it's committed by people who are loyal to him, who lies interminably, who has not a clue how to glue the nation and transform lives, and who is consumed by a monomaniacal obsession to perpetuate himself in power.
The monomaniacal Ahab and Kurtz, absolute and irresistible dictators in their constricted domains, are equally admired and feared by their followers.
There's immense pleasure in watching this anhedonic, monomaniacal survivalist inure herself to the worst--an afternoon snack consists of a whole herring pureed into a blood-entrails-and-scales smoothie--and dedicate herself to developing warrior strength.
Growing increasingly misanthropic and monomaniacal, he proceeds on a hermetic quest to save humanity from itself, while also succumbing to his own moral decline.
Bibi Netanyahu is monomaniacal on Iran, calling the nuclear deal a threat to Israel's survival and Iran "the greatest threat to our world."