66 entries under dull topic. ×

1
lumpish(adjective, slow, heavy, sluggish)
1
mooney(adjective, slow, heavy, sluggish)
1
moony(adjective, stupid, idle, weary)
1
nebbish(adjective, stupid, idle, weary)
1
off(adjective, slow, heavy, sluggish)
1
passive(adjective, stupid, still, weary)
1
phlegmatic(adjective, slow, heavy, stupid)
1
pokey(adjective, slow, heavy, sluggish)
1
slack(adjective, slow, heavy, still)
1
sleepyhead(adjective, quiet, slow, heavy)
1
sleepyheaded(adjective, slow, heavy, sluggish)
1
slothful(adjective, slow, heavy, still)
1
slow(adjective, quiet, heavy, weary)
1
slow-moving(adjective, slow, heavy, stupid)
1
sluggard(adjective, slow, heavy, still)
1
soothing(noun, adjective, tired, lethargic)
1
stagnant(adjective, slow, heavy, apathetic)
1
stiff(adjective, slow, heavy, sluggish)
1
stolid(adjective, still, weary, apathetic)
1
stupefied(adjective, cold, stupid, idle)
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APASmart Define. (2015). slumberous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/slumberous/thesaurus/synonyms
ChicagoSmart Define. 2015. "slumberous thesaurus" https://smartdefine.org/slumberous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, slumberous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/slumberous/thesaurus/synonyms>.
MLASmart Define. "slumberous thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/slumberous/thesaurus/synonyms>