216 entries under ill topic. ×

35
unwell(adjective, adverb, health, mean, bad)
32
ailing(adjective, adverb, health, mean, bad)
25
unhealthy(adjective, adverb, good, mean, feeling)
22
sickly(adjective, adverb, health, dull, light)
22
poorly(adjective, adverb, mean, disease, healthy)
21
queasy(adjective, mean, bad, weak, delicate)
18
feeble(adjective, dull, mean, feeling, bad)
18
indisposed(adjective, mean, bad, weak, disease)
17
diseased(adjective, adverb, health, mean, bad)
17
nauseated(adjective, mean, bad, weak, delicate)
16
infirm(adjective, mean, feeling, bad, weak)
16
unsound(adjective, state, weak, poor, false)
14
nauseous(adjective, unhappy, disgusting, weary)
13
afflicted(adjective, health, sad, unhappy, gloomy)
12
weak(adjective, dull, mean, feeling, bad)
12
frail(adjective, mean, bad, weak, delicate)
11
ghastly(adjective, dull, bad, light, soft)
10
crazy(adjective, enthusiastic, mad, fervent)
10
imperfect(adjective, state, mean, bad, weak)
10
mad(adjective, enthusiastic, crazy, fervent)
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APASmart Define. (2016). sick thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sick/thesaurus/synonyms
ChicagoSmart Define. 2016. "sick thesaurus" https://smartdefine.org/sick/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, sick thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sick/thesaurus/synonyms>.
MLASmart Define. "sick thesaurus" 3 April 2016. Web. 23 September 2026. <https://smartdefine.org/sick/thesaurus/synonyms>