Breadcrumb Home > Thesaurus > N Synonyms of narcolepsy Find synonyms for: Noun 1. narcolepsy, hypersomnia usage: a sleep disorder characterized by sudden and uncontrollable episodes of deep sleep; "he believes that narcolepsy is attributable to an inability to suppress REM sleep during waking" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of narcolepsy (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: frisson Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language