sanguineEnglishOxford American Thesaurussanguine adjective 1 he is sanguine about the remorseless advance of information technology: optimistic, bullish, hopeful, buoyant, positive, disposed to look on the bright side, confident, cheerful, cheery, bright, assured; informal upbeat; archaic of good cheer. ▷antonyms pessimistic, gloomy. 2 archaic a sanguine complexion: florid, ruddy, red, red-faced, reddish, rosy, rosy-cheeked, pink, pinkish, roseate, rubicund; healthy-looking, glowing, fresh; flushed, blushing, high-colored, blowsy; rare erubescent, rubescent. ▷antonyms pale.word toolkitsanguineSee confident.