b. Of a healthy reddish color; ruddy: a sanguine complexion.
2. Archaic
a. Having blood as the dominant humor in terms of medieval physiology.
b. Having the temperament and ruddy complexion formerly thought to be characteristic of a person dominated by this humor; passionate.
3. Cheerfully confident; optimistic.
[Middle English, from Old French sanguin, from Latin sanguineus, from sanguis, sanguin-, blood.]
Noun
1.
sanguine – a blood-red color
red, redness – red color or pigment; the chromatic color resembling the hue of blood
Adj.
1.
sanguine – confidently optimistic and cheerful
optimistic – expecting the best in this best of all possible worlds; “in an optimistic mood”; “optimistic plans”; “took an optimistic view”
2.
sanguine – inclined to a healthy reddish color often associated with outdoor life; “a ruddy complexion”; “Santa’s rubicund cheeks”; “a fresh and sanguine complexion”