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a. Cheerfully confident; optimistic: sanguine about the prospects for an improved economy.
b. At ease; accepting: "Deborah was generally sanguine about the women in Franklin's life" (Walter Isaacson).
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.
a. Of the color of blood; red.
b. Of a healthy reddish color; ruddy: a sanguine complexion.

[Middle English, blood-red, dominated by the humor blood, ruddy, from Old French sanguin, from Latin sanguineus, bloody, blood-red, from sanguis, sanguin-, blood.]

san′guine·ly adv.
san′guine·ness, san·guin′i·ty n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sanguineness - feeling sanguine; optimistically cheerful and confident
optimism - the optimistic feeling that all is going to turn out well


A tendency to expect a favorable outcome or to dwell on hopeful aspects:
References in periodicals archive ?
It is symbolic of the inevitability of endings and the sanguineness of beginnings.
It has been emphasized that such development has been providing fresh round of market sanguineness that the sagging world oil prices could be propped up - albeit, temporarily.
Synonyms: hopefulness, hope, confidence, buoyancy, cheer, good cheer, cheerfulness, sanguineness, positiveness, positive attitude