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maniac Syllabification: ma·ni·ac
Pronunciation: /ˈmānēˌak/

Definition of maniac in English:

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
1.2 Psychiatry , archaic A person suffering from mania.

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

Definition of maniac in:

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