1. A mentally disturbed or insane man
   "The madman ranted incoherently on the street corner"

Derived forms: madmen

See also: basket case [informal], fruitcake [informal], 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: adult male, bozo [N. Amer, informal], cat [N. Amer, informal], chappie [Brit, informal], crazy [N. Amer, informal], geezer [Brit, informal], guy [informal], headcase [informal], hombre [N. Amer, informal], looney [informal], loony [informal], lunatic, man, maniac, nutcase [informal], sod [informal]

Encyclopedia: Madman