Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Sanguine
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Sanguine: 1) Having a ruddy (reddish) complexion. 2) Cheerful, hopeful, confident, and optimistic; impulsive.
The word "sanguine" from the Latin "sanguineus" for "blood" has long been used in English for things relating to the blood. A person who is ruddy in complexion is sanguine. His (or her) ruddy countenance was once thought to be due to their having a predominance of one of the four humors -- blood.
Need Expert Advice on Your Condition?
Get a personalized video breakdown and treatment plan from our senior neurosurgeons using your MRI/CT scans.
👉 Request MRI Review