30
virus(noun, health, state, disorder, condition)
29
illness(noun, health, state, upset, trouble)
22
sickness(noun, health, state, trouble, disorder)
21
infection(noun, health, state, disorder, condition)
19
ailment(noun, health, state, upset, trouble)
16
contagion(noun, health, state, disorder, condition)
14
malady(noun, health, state, upset, trouble)
13
contamination(noun, affliction, ailment, infection, virus)
13
indisposition(noun, health, state, trouble, disorder)
13
bug(noun, health, state, disorder, informal)
13
plague(noun, health, state, disorder, evil)
12
blight(noun, health, state, disorder, evil)
11
complaint(noun, health, state, upset, trouble)
11
ail(noun, disorder, sick, sickness)
11
debility(noun, disorder, weakness, fault, illness)
11
distemper(noun, disorder, disturbance, sickness, affliction)
11
ill(noun, adjective, health, trouble, disorder)
11
sickliness(noun, disorder, weakness, fault, growth)
10
disorder(noun, health, state, trouble, evil)
10
cancer(noun, health, state, disorder, evil)
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APASmart Define. (2015). Disease thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/disease/thesaurus/synonyms
ChicagoSmart Define. 2015. "Disease thesaurus" https://smartdefine.org/disease/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, Disease thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/disease/thesaurus/synonyms>.
MLASmart Define. "Disease thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/disease/thesaurus/synonyms>