158 entries under weak topic. ×

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laid-up(ill, sick, feeble, poorly)
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lifeless(adjective, feeble, pale, white)
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meager(thin, frail)
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not feeling well(expression, idiom, ill, sick)
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not healthy(expression, adjective, thin, ill)
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shatterable(infirm, fragile)
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shattery(infirm, fragile)
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sick as dog(expression, idiom, feeble)
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slender(infirm, fragile)
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slim(infirm, fragile)
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tame(thin, incompetent, frail, puny)
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tenuous(infirm, fragile)
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under medication(expression, ill, sick, feeble)
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vulnerable(infirm, fragile, injured)
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wasting(sick, feeble, unwell)
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wishy-washy(light, soft, feeble, infirm)
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wispy(infirm, fragile)
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zero(thin, incompetent, frail, puny)
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APASmart Define. (2015). sickly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sickly/thesaurus/synonyms
ChicagoSmart Define. 2015. "sickly thesaurus" https://smartdefine.org/sickly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, sickly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sickly/thesaurus/synonyms>.
MLASmart Define. "sickly thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/sickly/thesaurus/synonyms>