100 entries under indifferent topic. ×

14
slothful(adjective, dull, quiet, moving, flat)
13
flat(adjective, quiet, slow, cold)
12
slow(adjective, dull, quiet, weak, easy)
11
supine(adjective, dull, weak, easy, slow)
11
phlegmatic(adjective, dull, quiet, weak, moving)
11
sleepy(adjective, dull, quiet, moving, slow)
10
lackadaisical(adjective, dull, quiet, weak, easy)
8
impassive(adjective, dull, weak, moving, easy)
7
asleep(adjective, calm, quiet, moving, gentle)
7
stolid(adjective, dull, quiet, moving, flat)
6
calm(adjective, quiet, smooth, gentle)
6
somnolent(adjective, dull, careless, relaxed)
6
spiritless(adjective, dull, quiet, weak, easy)
5
comatose(adjective, dull, weak, easy, slow)
4
dilatory(adjective, dull, quiet, easy, careless)
4
drowsy(adjective, dull, quiet, easy, careless)
4
latent(adjective, calm, quiet, gentle)
4
submissive(adjective, quiet, apathetic, lifeless)
3
cool(adjective, quiet, detached, aloof)
3
laggard(adjective, dull, quiet, easy, careless)
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APASmart Define. (2015). inert thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/inert/thesaurus/synonyms
ChicagoSmart Define. 2015. "inert thesaurus" https://smartdefine.org/inert/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, inert thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/inert/thesaurus/synonyms>.
MLASmart Define. "inert thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/inert/thesaurus/synonyms>