90 entries under shaky topic. ×

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rotten(adjective, uncertain, feeble, hesitant)
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sluggish(adjective, uncertain, feeble, hesitant)
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spent(adjective, uncertain, feeble, hesitant)
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spindly(adjective, uncertain, feeble, hesitant)
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supine(adjective, uncertain, feeble, hesitant)
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torpid(adjective, uncertain, feeble, hesitant)
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unbacked(false, unstable, ill, insane)
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unbalanced(false, unstable, ill, insane)
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uncertain(adjective, feeble, hesitant, sluggish)
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unwell(unstable, ill, insane, unhealthy)
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APASmart Define. (2016). insubstantial thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/insubstantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "insubstantial thesaurus" https://smartdefine.org/insubstantial/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, insubstantial thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/insubstantial/thesaurus/synonyms>.
MLASmart Define. "insubstantial thesaurus" 30 March 2016. Web. 28 September 2026. <https://smartdefine.org/insubstantial/thesaurus/synonyms>