/ Thesaurus / S Synonyms of slumbrous Find synonyms for: Adjective1. slumberous, slumbrous, restful (vs. restless), reposeful, relaxingusage: quiet and tranquil; "a slumberous June morning"2. slumberous, slumbery, slumbrous, somnolent, asleep(predicate) (vs. awake)usage: inclined to or marked by drowsiness; "slumberous (or slumbrous) eyes"; "`slumbery' is archaic"; "the sound had a somnolent effect"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language