FLIGHTINESS Scrabble 18 Words With Friends 20 Definition noun the trait of acting unpredictably and more from whim or caprice than from reason or judgment. — synonyms: arbitrariness, whimsicality, whimsy, whimsey, capriciousness See all 480 words you can make from FLIGHTINESS → 11-letter words Words starting with F Words ending with S ← Unscramble different letters