Furiosi Nulla Voluntas Est Definition: Latin: mentally impaired persons cannot validly sign a commit their will. A Latin expression that mentally impaired or incapable persons cannot validly sign a will or contract or form the frame of mind necessary to commit a crime.In Latin for Lawyers:"Furiousi nulla voluntas est - a madman has no free will."There must be as an essential ingredient in a criminal offence, some blameworthy condition of mind, and such condition of mind cannot justly be imputed to madmen who are under a natural disability of distinguishing between good and evil."REFERENCES:Latin for Lawyers (London: Sweet & Maxwell, 1915), page 101 Categories & Topics: Dictionary of Latin Law Terms Find you are constantly looking up definitions? Try our search provider (works in most modern browsers) If you find an error or omission in Duhaime's Legal Dictionary, or if you have legal term suggestion, we'd love to hear from you!