wintersome adjective 1noun 1 adjective1 •(literary, rare) Wintry.The fourteenth of February in London was quite as black, and cold, and as wintersome as it was at Allington, and was, perhaps, somewhat more melancholy in its coldness. — 2008 noun1 •(no longer used) A crop, a kind of sweet sorghum.Maize and wintersome both yield large quantities of material which may be easily stored in the form of silage. — 1941