Synonym: bleak, dark, depressing, dim, discouraging, dismal, dreary, glum, melancholy, sad, somber. Antonym: delightful, gay, happy, jocund, jolly, jovial, merry, pleasant. Similar words: glove, globe, economy, glower, global, agronomy, autonomy, boom. Meaning: ['gluːmɪ] 
adj. 1. characterized by hopelessness; filled with gloom 2. causing dejection 3. depressingly dark 4. causing or suggestive of sorrow or gloom 5. reflecting gloom.
adj. 1. characterized by hopelessness; filled with gloom 2. causing dejection 3. depressingly dark 4. causing or suggestive of sorrow or gloom 5. reflecting gloom. (151) But if there's no sound at all the silence is fearfully gloomy.
(152) They took a gloomy view of Russian military strength after the purge.
(153) He sat down with a most gloomy countenance by Fanny.