One of the four temperaments, associated with the element of air The sanguine personality is individualistic, relates to the world using the intellect and likely to disconnect from the emotions, freedom-loving, friendly, communicative, cool and dry See also Choleric, Melancholic and Phlegmatic
inclined to a healthy reddish color often associated with outdoor life; "a ruddy complexion"; "Santa's rubicund cheeks"; "a fresh and sanguine complexion"
{s} optimistic, hopeful; confident, certain; having a reddish complexion, ruddy; red, having the color of blood; sanguinary
If you are sanguine about something, you are cheerful and confident that things will happen in the way you want them to. He's remarkably sanguine about the problems involved. happy and hopeful about the future = optimistic sanguine about (sanguin, from sanguineus, from sanguis )