UNGRATEFULNESS Scrabble 18 Words With Friends 24 Scrabble letter values: U1N1G2R1A1T1E1F4U1L1N1E1S1S1 = 18 Definition noun a lack of gratitude. — synonyms: ingratitude See all 1618 words you can make from UNGRATEFULNESS → 14-letter words Words starting with U Words ending with S ← Unscramble different letters