Unsound Mind Law and Legal Definition

Unsound mind is a term that denotes lunacy and insanity. Under law, a person with an unsound mind is considered incompetent to go to trial. The term is used in statutes. Spouse of a person with unsound mind can claim divorce under the ground of insanity. Wills can be contested if there is ample proof that the testator was of unsound mind. Conveyances by persons having unsound mind who are tinder guardianship is void.