134 entries under adjective topic. ×

13
somnolent(noun, dull, quiet, slow)
11
sleepy(dull, quiet, slow, cold)
10
drowsy(noun, dull, quiet, slow)
9
soporific(noun, dull, quiet, slow)
8
lethargic(quiet, slow, cold, heavy)
8
sluggish(dull, quiet, slow, cold)
7
dozy(noun, dull, quiet, slow)
7
torpid(dull, quiet, slow, cold)
6
comatose(dull, quiet, slow, heavy)
6
narcotic
6
nodding(noun, dull, quiet, tired)
6
slumbrous
6
somnifacient(noun, awareness, sleepy, soporific)
5
asleep
5
dormant(dull, stupid, still, idle)
5
heavy(dull, quiet, slow, weary)
5
hypnotic
5
quiet
5
slumbery
4
inert(dull, moving, slow, heavy)
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APASmart Define. (2015). slumberous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/slumberous/thesaurus/synonyms
ChicagoSmart Define. 2015. "slumberous thesaurus" https://smartdefine.org/slumberous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, slumberous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/slumberous/thesaurus/synonyms>.
MLASmart Define. "slumberous thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/slumberous/thesaurus/synonyms>