8
out of sorts(expression, adjective, idiom, disease, ill)
7
bad(adjective, sad, unhappy, down, ill)
7
debilitated(adjective, mean, bad, weak, thin)
7
fragile(adjective, weak, thin, delicate, unstable)
7
low(adjective, health, weak, sad, thin)
6
decrepit(adjective, weak, thin, delicate, unstable)
6
faint(adjective, weak, thin, delicate, ill)
6
in poor health(expression, adjective, idiom, mean, weak)
5
mean(adjective, health, weak, thin, feeble)
5
off-color(adjective, health, weak, thin, ill)
5
peaky(adjective, weak, thin, ill, feeble)
5
rocky(adjective, health, mean, weak, sick)
4
bedridden(adjective, adverb, mean, weak, disease)
4
below par(expression, adjective, adverb, weak, thin)
4
down(adjective, mean, sick, green, imperfect)
4
infirmity(noun, disorder, disease, weakness, collapse)
4
laid up(verb, expression, adjective, phrasal verb, disease)
4
powerless(adjective, weak, thin, delicate, feeble)
4
run-down(adjective, weak, thin, sick, feeble)
4
wan(adjective, weak, thin, ill, feeble)
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APASmart Define. (2015). ailing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ailing/thesaurus/synonyms
ChicagoSmart Define. 2015. "ailing thesaurus" https://smartdefine.org/ailing/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, ailing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ailing/thesaurus/synonyms>.
MLASmart Define. "ailing thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/ailing/thesaurus/synonyms>