brooding, broody, chapfallen, crestfallen, decorous, demure, dumpish, earnest, formal, frowning, glum, grave, grim-faced, grim-visaged, grim, grum, heavy, heavyhearted, laden with sorrow, moodish, moody, mopey, moping, mopish, morose, mumpish, oppressed, sad-eyed, sad-faced, sad, sad of heart, saddened, sadhearted, sedate, serious, sober-minded, sober, sobersided, solemn, somber, staid, stone-faced, straight-faced, sulky, sullen, thoughtful, unsmiling, weighed upon, weighted down, weighty