demented Meaning, Definition & Usage

  1. adjective satellite affected with madness or insanity
    crazy; unhinged; brainsick; disturbed; mad; sick; unbalanced.
    • a man who had gone mad

WordNet


De*ment"ed adjective
Etymology
From Dement.
Definitions
  1. Insane; mad; of unsound mind. -- De*ment"ed*ness, n.

Webster 1913