Pronunciation: (slum'bur-us, slum'brus), [key]
1. sleepy; heavy with drowsiness, as the eyelids.
2. causing or inducing sleep.
3. pertaining to, characterized by, or suggestive of slumber.
4. inactive or sluggish; calm or quiet. Also,slum'brous.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.