3
chill(noun, cold, feelings, characteristics, states)
3
queasiness(noun, trouble, disorder, defeat, disease)
3
atrophy(noun, feelings, emotions, states)
3
bad condition(expression, health, states, conditions)
3
blight(disorder, sickness, affliction, ailment)
3
calamitous state of health(expression, health, states, situations)
3
deadliness(noun, disease, destruction, death, demise)
3
deadness(noun, destruction, death, demise, pathology)
3
decrepitude(noun, disorder, disease, weakness, condition)
3
distemperature(noun, health, disease, feelings, states)
3
endemic(noun, disorder, feelings, sickness, characteristics)
3
harm to health(expression, health, states, situations)
3
illnesses(noun, weak, disease, ill, sick)
3
invalidism(noun, feelings, characteristics, states, feebleness)
3
pain(noun, trouble, hurt, disorder, evil)
3
pathology(noun, destruction, death, demise)
3
unsoundness(noun, disorder, sickness, affliction, ailment)
3
worsening health(expression, health, states, situations)
3
worsening of health status(expression, health, states, situations)
2
handicap(noun, disease, feelings, characteristics, states)
10 years ago|8.2k views|share |citing 
APASmart Define. (2016). illness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/illness/thesaurus/synonyms
ChicagoSmart Define. 2016. "illness thesaurus" https://smartdefine.org/illness/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, illness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/illness/thesaurus/synonyms>.
MLASmart Define. "illness thesaurus" 29 February 2016. Web. 22 September 2026. <https://smartdefine.org/illness/thesaurus/synonyms>