66 entries under dull topic. ×

13
somnolent(noun, adjective, quiet, slow)
11
sleepy(adjective, quiet, slow, cold)
10
drowsy(noun, adjective, quiet, slow)
9
soporific(noun, adjective, quiet, slow)
8
sluggish(adjective, quiet, slow, cold)
7
dozy(noun, adjective, quiet, slow)
7
torpid(adjective, quiet, slow, cold)
6
comatose(adjective, quiet, slow, heavy)
6
nodding(noun, adjective, quiet, tired)
5
dormant(adjective, stupid, still, idle)
5
heavy(adjective, quiet, slow, weary)
4
inert(adjective, moving, slow, heavy)
3
dopey(adjective, quiet, slow, cold)
3
snoozy(noun, adjective, quiet, slow)
2
hebetudinous(adjective, slow, cold, heavy)
2
inactive(adjective, quiet, slow, heavy)
2
languid(adjective, slow, still, weary)
2
stretchy(adjective, stupid, idle, weary)
1
apathetic(adjective, slow, heavy, still)
1
blah(adjective, quiet, slow, heavy)
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APASmart Define. (2015). slumberous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/slumberous/thesaurus/synonyms
ChicagoSmart Define. 2015. "slumberous thesaurus" https://smartdefine.org/slumberous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, slumberous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/slumberous/thesaurus/synonyms>.
MLASmart Define. "slumberous thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/slumberous/thesaurus/synonyms>