slumbery vs slumberous

slumbery and slumberous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
slumbery	No	Yes	No	No
slumberous	No	Yes	No	No

As adjectives, slumbery and slumberous are synonyms defined as:

Other synonyms of slumbery include slumbrous, somnolent.

slumbery (adjective)	slumberous (adjective)
inclined to or marked by drowsiness	inclined to or marked by drowsiness
	quiet and tranquil