Synonyms|319Antonyms|153|Broader|10Narrower|18Related|329
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idiocy(apathy, nonsense, absurdity, ignorance)
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ignorance(weakness, apathy, nonsense, absurdity)
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imbecility(apathy, nonsense, absurdity, ignorance)
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immobilization(apathy, inactivity, stillness, laziness, numbness)
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impassiveness
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impotence
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imprudence(weakness, apathy, nonsense, absurdity, ignorance)
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inanimateness
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inanimation(noun, inertness)
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inappetence
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incapacity(weakness, apathy, nonsense, absurdity, ignorance)
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indolent
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ineptitude(apathy, nonsense, absurdity, ignorance)
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injudiciousness(weakness, apathy, nonsense, absurdity, ignorance)
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joblessness(noun, inactivity, lethargy, trifling, laziness)
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lackadaisicalness(noun, apathy, lethargy, negligence, languor)
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languorousness(noun, dullness, apathy, lethargy, negligence)
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lazing(noun, inactivity, lethargy, trifling, laziness)
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lazy
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leisure(noun, inactivity, lethargy, trifling, laziness)
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APASmart Define. (2015). sluggishness thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sluggishness/thesaurus/synonyms
ChicagoSmart Define. 2015. "sluggishness thesaurus" https://smartdefine.org/sluggishness/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, sluggishness thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sluggishness/thesaurus/synonyms>.
MLASmart Define. "sluggishness thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/sluggishness/thesaurus/synonyms>