Synonyms|132Antonyms|0|Broader|0Narrower|0Related|5

32 entries under adjective topic. ×

9
narcotic(noun, awareness, sleep, sleepy)
7
hypnotic(noun, awareness, sleepy, dope)
7
opiate(noun, awareness, sleepy, dope)
7
soporific(noun, awareness, sleepy, dope)
6
somnolent(noun, dull, awareness, sleepy)
5
sedative(noun, awareness, sleepy, dope)
5
slumberous(noun, awareness, sleepy, soporific)
4
sleepy
4
somniferous(noun, dull, quiet, heavy)
4
somnific(quiet, dark, heavy, awareness)
2
dozy(noun, dull, quiet, slow)
2
snoozy(noun, dull, quiet, slow)
1
blah(informal, sleepy)
1
comatose
1
draggy(quiet, slow, heavy, sleepy)
1
drowsy(noun, sleepy, soporific)
1
heavy(informal, sleepy)
1
inactive
1
lethargic
1
listless
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APASmart Define. (2015). somnifacient thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/somnifacient/thesaurus/synonyms
ChicagoSmart Define. 2015. "somnifacient thesaurus" https://smartdefine.org/somnifacient/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, somnifacient thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/somnifacient/thesaurus/synonyms>.
MLASmart Define. "somnifacient thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/somnifacient/thesaurus/synonyms>