[adj] inclined to a healthy reddish color often associated with outdoor life; "a ruddy complexion"; "Santa's rubicund cheeks"; "a fresh and sanguine complexion"
[adj] confidently optimistic and cheerful
Misc. Definitions
\San"guine\, a. [F. sanguin, L. sanguineus, fr. sanguis blood. Cf. {Sanguineous}.]
1. Having the color of blood; red. Of his complexion he was sanguine. --Chaucer. Like to that sanguine flower inscribed with woe. --Milton.
2. Characterized by abundance and active circulation of blood; as, a sanguine bodily temperament.
3. Warm; ardent; as, a sanguine temper.
4. Anticipating the best; not desponding; confident; full of hope; as, sanguine of success. Syn: Warm; ardent; lively; confident; hopeful.
\San"guine\, n.
1. Blood color; red. --Spenser.
2. Anything of a blood-red color, as cloth. [Obs.] In sanguine and in pes he clad was all. --Chaucer.
3. (Min.) Bloodstone.
4. Red crayon. See the Note under {Crayon},
1.
\San"guine\, v. t. To stain with blood; to impart the color of blood to; to ensanguine.