WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / sleeplessness sleeplessness noun 13 letters Scrabble 15 WWF 19 Definitions noun a temporary state in which you are unable (or unwilling) to sleep wakefulness Look “sleeplessness” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →