GRUELING Scrabble 10 Words With Friends 15 Definition adjective characterized by effort to the point of exhaustion. — synonyms: arduous, backbreaking, gruelling, hard, heavy, laborious, operose, punishing Anagrams of GRUELING regluing See all 110 words you can make from GRUELING → 8-letter words Words starting with G Words ending with G ← Unscramble different letters