5
resting(adjective, slow, sluggish, easygoing, lazy)
5
sedentary
5
unconcerned(adjective, cold, dead, apathy, passive)
5
uninterested(adjective, cold, dead, apathy, passive)
4
defunct(adjective, lifeless, late, asleep, nonliving)
4
dilatory(adjective, dull, quiet, easy, careless)
4
drowsy(adjective, dull, quiet, easy, careless)
4
exanimate(lifeless, inactivity, nonliving, inorganic)
4
frigid(adjective, flat, cold, dead, apathy)
4
hebetudinous(adjective, dull, slow, heavy, apathetic)
4
impotent(adjective, moving, lifeless)
4
insensate(senseless, lifeless, unconscious, insensible, comatose)
4
latent(adjective, calm, quiet, gentle, indifferent)
4
low
4
nonliving(lifeless, inorganic)
4
otiose
4
paralyzed(adjective, calm, weak, moving, still)
4
reposing(adjective, lifeless, late, unconscious, asleep)
4
serene(adjective, calm, quiet, smooth, tranquil)
4
soulless(adjective, lifeless, inactivity, nonliving, inorganic)
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APASmart Define. (2015). inert thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/inert/thesaurus/synonyms
ChicagoSmart Define. 2015. "inert thesaurus" https://smartdefine.org/inert/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, inert thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/inert/thesaurus/synonyms>.
MLASmart Define. "inert thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/inert/thesaurus/synonyms>