SULLENNESS Scrabble 10 Words With Friends 15 Definition noun a gloomy ill-tempered feeling. — synonyms: moroseness, glumness noun a sullen moody resentful disposition. — synonyms: sulkiness, moroseness, sourness See all 79 words you can make from SULLENNESS → 10-letter words Words starting with S Words ending with S ← Unscramble different letters