uncheerful(adjective) adjective1. causing sad feelings of gloom and inadequacy- a moody and uncheerful person- an uncheerful placeSimilar word(s): blue, dark, dingy, disconsolate, dismal, drab, drear, dreary, gloomy, grim, sorry, melancholy, somber, sombre, unhappy, joyless, cheerless, depressing