26
ill(adjective, adverb, mean, bad, weak)
24
unwholesome(adjective, health, good, right, offensive)
23
feeble(adjective, adverb, mean, bad, weak)
22
sickly(adjective, weak, disease, thin, offensive)
22
sick(adjective, adverb, good, mean, bad)
18
noxious(adjective, disagreeable, rotten, injurious, deadly)
18
unsound(adjective, weak, severe, disease, poor)
17
harmful(adjective, offensive, foul, disgusting, harmful)
17
unwell(adjective, adverb, mean, ill, sick)
17
insalubrious(adjective, health, offensive, foul, disgusting)
16
detrimental(adjective, offensive, foul, distressing, harmful)
15
ailing(adjective, mean, weak, sick, green)
15
infirm(adjective, mean, bad, weak, disease)
15
delicate(adjective, adverb, mean, bad, weak)
15
diseased(adjective, mean, weak, sick, green)
15
unsanitary(adjective, dirty, foul, unclean, polluted)
12
frail(adjective, mean, weak, sick, feeble)
12
injurious(adjective, offensive, foul, disgusting, distressing)
12
bad(adjective, wrong, evil, cross, rank)
12
deleterious(adjective, offensive, foul, disgusting, distressing)
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APASmart Define. (2016). unhealthy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unhealthy/thesaurus/synonyms
ChicagoSmart Define. 2016. "unhealthy thesaurus" https://smartdefine.org/unhealthy/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, unhealthy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unhealthy/thesaurus/synonyms>.
MLASmart Define. "unhealthy thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/unhealthy/thesaurus/synonyms>