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Noun: maniac  'mey-nee,ak
  1. An insane person
    - lunatic, madman, crazy [N. Amer, informal], loony [informal], looney [informal], nutcase [informal], headcase [informal]
     
  2. A person who has an obsession with or excessive enthusiasm for something
Adjective: maniac  'mey-nee,ak
  1. Wildly disordered
    "a maniac frenzy";
    - maniacal

Derived forms: maniacs

See also: basket case [informal], fruitcake [informal], insane, mentalist [Brit, informal], nutbar [N. Amer, informal], nutcake [US, informal], nutjob [informal], nutter [Brit, informal], wackadoodle [N. Amer, informal], wackjob [N. Amer, informal], wacko [informal], whackjob [N. Amer, informal], whacko [informal]

Type of: diseased person, enthusiast, fancier, sick person, sufferer

Encyclopedia: Maniac