← BackshareGuessgloomful/ˈɡlumfəl/adjectiveFull of gloom; dark, dim, or depressing.His gloomful expression told everyone he was not having a good day.The old castle had a gloomful atmosphere that made visitors shiver.The weather turned gloomful, with heavy clouds and a cold drizzle.SynonymssomberdrearyAntonymscheerfulbright