Definition of maniac in English:

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maniac

Pronunciation: /ˈmānēˌak/

noun

informal
1A person exhibiting extreme symptoms of wild behavior, especially when violent and dangerous: a homicidal maniac
More example sentences
  • He is not a homicidal maniac, but a violent, evil man made even more so by his addiction to unnamed drugs.
  • I lost several pounds and I looked like a maniac.
  • The driver was screaming like a maniac at this stage.
1.1 [with modifier] An obsessive enthusiast: a gambling maniac
More example sentences
  • I just don't think at any stage they are going to be able to make a credible case that he is some sort of right-wing maniac.
  • A night of petrol-fuelled hedonism is in store at Wimbledon Greyhound Stadium on Sunday where motor maniacs can admire a human canon ball, a monster truck, fire stunts and car crashes.
  • This was one for the war buffs amongst the motoring maniacs.
Synonyms
enthusiast, fan, devotee, aficionado
informal freak, fiend, fanatic, nut, buff, bum, addict
1.2 Psychiatry , archaic A person suffering from mania.
Synonyms
lunatic, madman, madwoman, psychopath
informal loony, fruitcake, nutcase, nutjob, nut, fruit loop, psycho, mental case, head case, sicko, screwball, crazy, loon

Origin

Early 16th century (as an adjective): via late Latin from late Greek maniakos, from mania (see mania).

Words that rhyme with maniac

bibliomaniac, dipsomaniac, egomaniac, kleptomaniac, megalomaniac, monomaniac, nymphomaniac, pyromaniac

For editors and proofreaders

Syllabification: ma·ni·ac

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