300 entries under weak topic. ×

5
precarious(adjective, change, strong, unstable)
5
seedy(adjective, weakness, thin, feeble)
5
slight(adjective, light, thin, delicate)
5
tender(adjective, delicate, uncertain, feeble)
5
tentative(adjective, indecisive, irresolute, vacillating)
5
undecided(adjective, uncertain, doubtful, unsure)
4
anile(adjective, delicate, sick, feeble)
4
hesitant(adjective, uncertain, feeble, doubtful)
4
imperfect(adjective, mean, down, ill)
4
in poor health(expression, adjective, idiom, mean)
4
pale(adjective, bad, thin, ill)
4
peaked(adjective, mean, thin, sick)
4
peaky(adjective, thin, ill, sick)
3
aged(adjective, thin, delicate, feeble)
3
bedridden(adjective, mean, hurt, sick)
3
halfhearted(adjective, indecisive, irresolute, vacillating)
3
halting(adjective, disease, delicate, ill)
3
infected(adjective, mean, sick, feeble)
3
laid low(expression, adjective, idiom, weakness)
3
light(adjective, slight, fragile)
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APASmart Define. (2015). infirm thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/infirm/thesaurus/synonyms
ChicagoSmart Define. 2015. "infirm thesaurus" https://smartdefine.org/infirm/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, infirm thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/infirm/thesaurus/synonyms>.
MLASmart Define. "infirm thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/infirm/thesaurus/synonyms>