WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / U / unmercifulness unmercifulness noun 5 syllables 14 letters Scrabble 21 WWF 28 Definitions noun inhumaneness evidenced by an unwillingness to be kind or forgiving mercilessness Look “unmercifulness” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →