Also found in: Thesaurus.


 (slŭm′bər-əs) or slum·brous (-brəs)
1. Sleepy; drowsy.
a. Suggestive of or resembling sleep: a slumberous torpor.
b. Quiet; tranquil.
3. Causing or inducing sleep; soporific.

slum′ber·ous·ly adv.
slum′ber·ous·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈslʌmbərəs; -brəs) or


1. sleepy; drowsy
2. inducing sleep
3. characteristic of slumber
ˈslumberously, ˈslumbrously adv
ˈslumberousness, ˈslumbrousness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈslʌm bər əs, ˈslʌm brəs)

also slum′brous,

1. sleepy; heavy with drowsiness, as the eyelids.
2. pertaining to slumber.
3. inactive or sluggish; calm; quiescent.
slum′ber•ous•ly, adv.
slum′ber•ous•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.slumberous - quiet and tranquil; "a slumberous June morning"
relaxing, reposeful, restful - affording physical or mental rest; "she spent a restful night at home"
2.slumberous - inclined to or marked by drowsiness; "slumberous (or slumbrous) eyes"; "`slumbery' is archaic"; "the sound had a somnolent effect"
asleep - in a state of sleep; "were all asleep when the phone rang"; "fell asleep at the wheel"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


or slumbrous
1. Ready for or needing sleep:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


slumbrous [ˈslʌmbərəs] ADJsoñoliento (fig) → inactivo, inerte
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
References in classic literature ?
This was all I heard that night before my sister clutched me, as a slumberous offence to the company's eyesight, and assisted me up to bed with such a strong hand that I seemed to have fifty boots on, and to be dangling them all against the edges of the stairs.
I stepped out of the door into the slumberous heat of the late afternoon, and walking past the main entrance--locked again, I noticed-- turned the corner of the wall
A slumberous veil diffused itself over his countenance, and had an effect, morally speaking, on its naturally delicate and elegant outline, like that which a brooding mist, with no sunshine in it, throws over the features of a landscape.
As the glass door closed behind Dorian, Lord Henry turned and looked at the duchess with his slumberous eyes.
I too felt a slumberous influence after watching him half an hour, as he sat thus with his eyes half open, like a cat, winged brother of the cat.
I hurried on board with the rest of the passengers, most of whom were in great perturbation: some bawling out for their baggage; some tearing their hair and exclaiming that the boat would explode or sink; some already pale with the heaving of the stream; some gazing affrighted at the ugly aspect of the steersman; and some still dizzy with the slumberous influences of the Enchanted Ground.
There, beside the fireplace, the brave old General used to sit; while the Surveyor -- though seldom, when it could be avoided, taking upon himself the difficult task of engaging him in conversation -- was fond of standing at a distance, and watching his quiet and almost slumberous countenance.
"Bumblebees have a really thick and lovely fur coat, tend to be bigger and have a slightly slumberous gait in the air.
Bumblebees have a really thick, lovely fur coat, are bigger and have a slightly slumberous gait in the air.
Due to the strength and quality of the squad, they've been able to recover from slumberous starts and get the job done.
Awakened from their comfortable lives, made to know that there is a big noise out there waiting for each of us, to rouse us from our slumberous lives.
Terrorism is rampant, both state-sponsored and "free-lance," and putatively "free" countries have been weakened to the point of ineffectiveness--and defenselessness--by their own socially progressive policies, timidly huddling behind their sieve-like borders, stripping their military forces to the bone in order to fund domestic programs intended to keep their citizens slumberous. Nations like Iran, communist China and Russia, unconstrained by high-sounding platitudes, are carving up the planet while the UN quibbles and squeaks.