or slum·brous

[ sluhm-ber-uh s, sluhm-bruh s or sluhm-bruh s ]
/ ˈslʌm bər əs, ˈslʌm brəs or ˈslʌm brəs /


sleepy; heavy with drowsiness, as the eyelids.
causing or inducing sleep.
pertaining to, characterized by, or suggestive of slumber.
inactive or sluggish; calm or quiet.


How Hip Is Your Lingo? Take Our Slang Quiz!
If you aren’t already skilled in slang, then this quiz can get you up to speed in no time!
Question 1 of 11
OK Boomer can be perceived as pejorative, but it is mostly considered to be _____

Origin of slumberous

First recorded in 1485–95; slumber + -ous


slum·ber·ous·ly, adverbslum·ber·ous·ness, nounun·slum·brous, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for slumberous

British Dictionary definitions for slumberous

/ (ˈslʌmbərəs, -brəs) /

adjective mainly poetic

sleepy; drowsy
inducing sleep
characteristic of slumber

Derived forms of slumberous

slumberously, adverbslumberousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012