Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
Adjective: demented  di'men-tid
  1. Affected with madness or insanity
    "a man who had gone demented";
    - brainsick [archaic], crazy [informal], disturbed, mad, unbalanced, unhinged
Verb: dement  di'ment
  1. Deprive of reason; drive mad
    "The constant noise slowly demented the prisoners"

See also: insane

Encyclopedia: Demented

Dement, Mike