derangement Meaning, Definition & Usage

  1. noun a state of mental disturbance and disorientation
    unbalance; mental unsoundness.
  2. noun the act of disturbing the mind or body
    overthrow; upset.
    • his carelessness could have caused an ecological upset
    • she was unprepared for this sudden overthrow of their normal way of living

WordNet


De*range"ment noun
Etymology
Cf. F. dérangement.
Definitions
  1. The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity. Syn. -- Disorder; confusion; embarrassment; irregularity; disturbance; insanity; lunacy; madness; delirium; mania. See Insanity.

Webster 1913