88 entries under illness topic. ×

9
malaise(noun, trouble, disorder, evil, harm)
8
infirmity(noun, health, state, trouble, disorder)
8
fever(noun, disorder, sickness, affliction)
7
flu(noun, disorder, weakness, fault, growth)
5
breakdown(noun, sickness, spell, complaint)
5
endemic(noun, sickness, plague, affliction)
5
feebleness(noun, disorder, weakness, fault)
5
pain(noun, trouble, disorder, evil, harm)
5
upset(noun, health, state, trouble, anxiety)
4
pathosis(noun, growth, sickness, affliction)
3
decrepitude(noun, disorder, weakness, fault)
3
syndrome(noun, trouble, disorder, evil, harm)
3
ailing(noun, adjective, disorder, weakness, fault)
2
affliction(noun, health, state, upset, trouble)
2
collapse(noun, sickness, affliction, ailment)
2
visitation(noun, sickness, affliction, ailment)
2
convulsions(noun, sickness, affliction, ailment)
2
failing(noun, disorder, defeat, weakness, fault)
2
germ(noun, sickness, bug, microorganism)
2
inflammation(noun, disorder, sickness, affliction)
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APASmart Define. (2015). disease thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/disease/thesaurus/synonyms
ChicagoSmart Define. 2015. "disease thesaurus" https://smartdefine.org/disease/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, disease thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/disease/thesaurus/synonyms>.
MLASmart Define. "disease thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/disease/thesaurus/synonyms>