Insanity definition

(law) Any form or degree of mental derangement or unsoundness of mind, permanent or temporary, that makes a person incapable of what is regarded legally as normal, rational conduct or judgment.

Severe mental illness or derangement. Not used in psychiatric diagnosis.

Extreme foolishness or irrationality.

Something that is extremely foolish, distinctly irrational, or wildly excited.

The state of being insane; mental illness or derangement.

Unsoundness of mind sufficient to render a person unfit to maintain a contractual or other legal relationship or sufficient to warrant commitment to a mental health facility.

Incapacity to form the criminal intent necessary for legal responsibility, as when a mental disorder prevents a person from knowing the difference between right and wrong.

A mental disorder that deprives a criminal defendant of capacity to be tried.

Great folly; extreme senselessness.

The definition of insanity is having a serious mental illness or being extremely foolish.

Incapacity because of a mental disorder to participate adequately as a defendant in criminal proceedings or to understand the imposition of a criminal punishment, particularly the death penalty.