WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / M / massiveness massiveness noun 3 syllables 11 letters Scrabble 16 WWF 19 Definitions noun the property of being large in mass heftheftinessponderosityponderousness noun an unwieldy largeness bulkiness Look “massiveness” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →