Thesaurus.com
Dictionary.com

slumbersome

ADJECTIVE
nodding
Synonyms
STRONG
out quiet sleeping slow yawning
WEAK
asleep blah comatose dopey dozy draggy drowsy heavy hypnotic inactive lethargic listless out of it sleepyhead sluggish slumberous slumbery snoozy somnolent soporific torpid
ADJECTIVE
sleepy
Synonyms
STRONGEST
drowsy lethargic listless quiet sluggish
WEAK
asleep blah comatose dopey dozy draggy heavy hypnotic inactive out out of it sleeping sleepyhead slow slumberous snoozy somnolent soporific torpid yawning
Antonyms
STRONGEST
active alert energetic lively
WEAK
animated awake unsleepy
ADJECTIVE
slumberous
Synonyms
WEAK
asleep blah comatose dopey dozy draggy drowsy heavy hypnotic inactive lethargic listless nodding out out of it quiet sleeping sleepyhead slow sluggish slumbery snoozy somnolent soporific torpid yawning
ADJECTIVE
somnifacient
Synonyms
WEAK
asleep blah comatose dopey dozy draggy drowsy heavy hypnotic inactive lethargic listless narcotic opiate out out of it quiet sedative sleeping sleepyhead slow sluggish slumberous snoozy somniferous somnific somnolent soporific torpid yawning
ADJECTIVE
somniferous
Synonyms
WEAK
asleep blah comatose dopey dozy draggy drowsy heavy hypnotic inactive lethargic listless narcotic opiate out out of it quiet sedative sleeping sleepyhead slow sluggish slumberous snoozy somnifacient somnific somnolent soporific torpid yawning
ADJECTIVE
somnific
Synonyms
WEAK
asleep blah comatose dopey dozy draggy drowsy heavy hypnotic inactive lethargic listless narcotic opiate out out of it quiet sedative sleeping sleepyhead slow sluggish slumberous snoozy somnifacient somniferous somnolent soporific torpid yawning