38
ill(adjective, adverb, health, mean, bad)
27
ailing(adjective, adverb, mean, weak, disease)
27
poorly(adjective, adverb, mean, bad, weak)
27
sick(adjective, adverb, health, mean, bad)
26
under the weather(expression, adjective, idiom, adverb, disease)
25
sickly(adjective, adverb, weak, anxious, ill)
24
unhealthy(adjective, mean, ill, sick, green)
21
indisposed(adjective, mean, weak, disease, sick)
19
diseased(adjective, adverb, mean, bad, weak)
16
feeble(adjective, mean, weak, ill, sick)
15
out of sorts(expression, adjective, idiom, adverb, bad)
15
seedy(adjective, weak, disease, ill, sick)
14
infirm(adjective, mean, ill, sick, green)
14
unsound(adjective, ill, well, shaky, unhealthy)
12
frail(adjective, mean, weak, ill, sick)
10
afflicted(adjective, sick, affected, suffering, unhealthy)
9
not good
9
queasy(adjective, mean, weak, sick, well)
8
bad(adjective, ill, sick, poorly)
8
peaked(adjective, mean, weak, sick, green)
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APASmart Define. (2016). Unwell thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unwell/thesaurus/synonyms
ChicagoSmart Define. 2016. "Unwell thesaurus" https://smartdefine.org/unwell/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, Unwell thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unwell/thesaurus/synonyms>.
MLASmart Define. "Unwell thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/unwell/thesaurus/synonyms>