132 entries under dull topic. ×

10
unconcerned(adjective, calm, careless, indifferent)
9
indolent(adjective, quiet, easy, careless)
9
lazy(adjective, careless, indifferent, deliberate)
9
still(adjective, sluggish, lazy, inert)
9
uninterested(adjective, indifferent, unconcerned, sluggish)
8
dispassionate(adjective, calm, flat, indifferent)
8
impassive(adjective, calm, indifferent, still)
8
lackadaisical(adjective, quiet, careless, heavy)
8
sedentary(adjective, sluggish, lazy, inert)
8
slow(adjective, careless, heavy, indifferent)
7
disinterested(adjective, calm, flat, careless)
7
immobile(adjective, still, sluggish, lazy)
7
latent(adjective, sluggish, lifeless, lazy)
7
slack(adjective, careless, loose, sluggish)
7
sleepy(adjective, quiet, careless, heavy)
7
slothful(adjective, quiet, careless, indifferent)
7
stolid(adjective, calm, indifferent, stupid)
7
unresponsive(adjective, calm, cool, flat)
6
comatose(adjective, careless, indifferent, idle)
6
flat(adjective, calm, indifferent, unconcerned)
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APASmart Define. (2016). passive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/passive/thesaurus/synonyms
ChicagoSmart Define. 2016. "passive thesaurus" https://smartdefine.org/passive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, passive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/passive/thesaurus/synonyms>.
MLASmart Define. "passive thesaurus" 10 February 2016. Web. 25 September 2026. <https://smartdefine.org/passive/thesaurus/synonyms>