Meanings
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1
adj
drowsy, sleepy, or suggestive of sleep
He answered in a slumbrous voice without opening his eyes.
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2
adj
quiet, still, and tranquil in a sleep-like way
A slumbrous silence settled over the village at noon.
Thesaurus
Synonyms
Word family
Etymology
A shortened variant of slumberous, formed from slumber + -ous. Slumber came through Middle English from an uncertain Germanic source and means light sleep; slumbrous is chiefly literary.