Quick definitions from WordNet (gloomy)
▸ adjective: characterized by hopelessness; filled with gloom ("Gloomy at the thought of what he had to face")
▸ adjective: depressingly dark ("The gloomy forest")
▸ adjective: reflecting gloom ("Gloomy faces")
▸ adjective: causing or suggestive of sorrow or gloom ("A gloomy outlook")
▸ adjective: depressing in character or appearance ("Gloomy tenements")
▸ adjective: causing dejection ("A dark gloomy day")
▸ Also see gloomy
▸ adjective: characterized by hopelessness; filled with gloom ("Gloomy at the thought of what he had to face")
▸ adjective: depressingly dark ("The gloomy forest")
▸ adjective: reflecting gloom ("Gloomy faces")
▸ adjective: causing or suggestive of sorrow or gloom ("A gloomy outlook")
▸ adjective: depressing in character or appearance ("Gloomy tenements")
▸ adjective: causing dejection ("A dark gloomy day")
▸ Also see gloomy