91 entries under lifeless topic. ×

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lukewarm(adjective, dull, sluggish, lethargic)
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neutral(adjective, dull, sluggish, lethargic)
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not alive(expression, adjective, mineral, nonliving)
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not organic(expression, adjective, nonliving, inorganic)
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out of it(expression, adjective, idiom, dull, sluggish)
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slack(still, lethargic, languid, sleepy)
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stable(calm, still, inactive, inert)
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steadfast(calm, still, inactive, inert)
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stupid(adjective, dull, sluggish, lethargic)
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unmovable(calm, still, inactive, inert)
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unresponsive(adjective, still, insensitive, motionless)
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APASmart Define. (2015). inanimate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/inanimate/thesaurus/synonyms
ChicagoSmart Define. 2015. "inanimate thesaurus" https://smartdefine.org/inanimate/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, inanimate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/inanimate/thesaurus/synonyms>.
MLASmart Define. "inanimate thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/inanimate/thesaurus/synonyms>