GLOOMIEST /ˈɡlumi.əst/ Scrabble 12 Words With Friends 15 Definition GLOOMIEST is the superlative of GLOOMY. adjective GLOOMY: depressingly dark. Examples “The cavern was gloomy.”“a gloomy temper or countenance” See all 283 words you can make from GLOOMIEST → 9-letter words Words starting with G Words ending with T ← Unscramble different letters