WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / N / nefariousness nefariousness noun /nɪfɜriəsnɛs/ 5 syllables 13 letters Scrabble 16 WWF 19 Definitions noun the quality of being wicked uglinessvilenesswickedness Look “nefariousness” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →