Noun
The state of being insane; unsoundness or derangement of mind; madness; lunacy.
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.
Source: Webster's dictionaryAbolition of the insanity defense Szasz believed that testimony about the mental competence of a defendant should not be admissible in trials. Source: Internet
About 2 percent were denied admission to the U.S. and sent back to their countries of origin for reasons such as having a chronic contagious disease, criminal background, or insanity. Source: Internet
Albert Einstein is credited with this quote that the definition of insanity is doing the same thing over and over and over again, expecting a different result. Source: Internet
Additionally, Republicans alleged that insanity ran through the Seymour family, citing as evidence the suicide of his father. Source: Internet
A fictional novel about insanity and inheritance, namely postnatal depression. Source: Internet
Although not a proponent of humoralism, Rush believed that active purging and bloodletting were efficacious corrections for disruptions in the circulatory system, a complication he believed was the primary cause of "insanity." Source: Internet