173 entries under dull topic. ×

1
nebbish(adjective, weak, easy, slow)
1
nonanimal(cold, lifeless, nonliving, inorganic)
1
nonvegetable(cold, lifeless, nonliving, inorganic)
1
pining(adjective, weak, easy, slow)
1
pokey(adjective, slow, heavy, sluggish)
1
regular(adjective, quiet, flat, slow)
1
sickly(adjective, weak, easy, slow)
1
sleepyheaded(adjective, slow, heavy, sluggish)
1
sluggard(adjective, slow, heavy, still)
1
soulless(adjective, cold, lifeless, nonliving)
1
stiff(adjective, moderate, low, slow)
1
sullen(adjective, slow, heavy, sluggish)
1
tired(adjective, slow, careless, indifferent)
1
trifling(idle, sluggish, lethargic, indolent)
1
unenergetic(idle, sluggish, lazy, lethargic)
1
uneventful(quiet, flat, late, behind)
1
unindustrious(idle, sluggish, lethargic, indolent)
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unpersevering(idle, sluggish, lethargic, indolent)
1
unready(adjective, careless, indifferent, idle)
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weak(adjective, easy, slow, relaxed)
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APASmart Define. (2015). inactive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inactive/thesaurus/synonyms
ChicagoSmart Define. 2015. "inactive thesaurus" https://smartdefine.org/inactive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, inactive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inactive/thesaurus/synonyms>.
MLASmart Define. "inactive thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/inactive/thesaurus/synonyms>