10
illness(noun, health, weak, disorder, disease)
10
not good(expression, idiom)
10
poor(bad, property, negative, unwell, disapproving)
10
rotten(adjective, mean, weak, sick, green)
9
damage(noun, adjective, trouble, hurt, wrong)
9
frail(adjective, mean, bad, weak, delicate)
9
mischief(noun, trouble, hurt, wrong, damage)
9
ominous(adjective, bad, evil, negative, unfavorable)
9
unpropitious(adjective, bad, evil, negative, luck)
8
affection(noun, trouble, weak, disorder, evil)
8
badness(noun, trouble, help, wrong, evil)
8
disturbing(adjective, bad, evil, harmful, unfavorable)
8
inimical(adjective, bad, evil, negative, antagonistic)
8
malady(noun, health, weak, disorder, disease)
8
misery(noun, health, trouble, cut, hurt)
8
nauseous(adjective, disgusting, sick, unwell, diseased)
8
suffering(noun, trouble, mean, bad, hurt)
8
trouble(noun, weak, disorder, ruin, damage)
8
unfavourable
8
unfortunate(adjective, bad, evil, negative, disapproving)
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APASmart Define. (2016). ill thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/ill/thesaurus/synonyms
ChicagoSmart Define. 2016. "ill thesaurus" https://smartdefine.org/ill/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, ill thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/ill/thesaurus/synonyms>.
MLASmart Define. "ill thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/ill/thesaurus/synonyms>