de·ment·ed /dɪˈmɛntəd/
  (a.)發狂的,精神錯亂狀態的
  de·ment·ed /dɪˈmɛntəd/ 形容詞
  痴呆的
  De·ment·ed a.  Insane; mad; of unsound mind. -- De*ment*ed*ness, n.
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  demented
       adj : affected with madness or insanity; "a man who had gone mad"
             [syn: brainsick, crazy, distracted, disturbed,
             mad, sick, unbalanced, unhinged]