Insanity /(?)/

In·san·i·ty

Insanity

n.
  1. The state of being insane; unsoundness or derangement of mind; madness; lunacy.
    All power of fancy over reason is a degree of insanity.
    Without grace The heart's insanity admits no cure.
  2. Such a mental condition, as, either from the existence of delusions, or from incapacity to distinguish between right and wrong, with regard to any matter under action, does away with individual responsibility. (Law)