3
immovable(adjective, still, passive, motionless, stationary)
3
insouciant(adjective, cold, dead, apathy, passive)
3
laggard(adjective, dull, quiet, easy, careless)
3
moribund
3
nonchalant(adjective, cold, dead, apathy, passive)
3
obtuse(adjective, dull, heavy, stupid, impassive)
3
pacific(adjective, calm, quiet, smooth, tranquil)
3
paralytic
3
pococurante(adjective, cold, dead, apathy, passive)
3
remiss(adjective, dull, idle, sluggish, inactivity)
3
shiftless(adjective, dull, idle, sluggish, lazy)
3
slumbering(adjective, calm, gentle, still, sluggish)
3
slumberous(adjective, dull, moving, slow, heavy)
3
soggy
3
stock-still(adjective, calm, quiet, smooth, still)
3
tardy(dull, idle, sluggish, lazy, inactive)
3
unanimated
3
unchangeable
3
unchanging(adjective, still, motionless, stationary)
3
uninvolved(adjective, quiet, indifferent, detached, aloof)
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APASmart Define. (2015). inert thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/inert/thesaurus/synonyms
ChicagoSmart Define. 2015. "inert thesaurus" https://smartdefine.org/inert/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, inert thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/inert/thesaurus/synonyms>.
MLASmart Define. "inert thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/inert/thesaurus/synonyms>