2
ringworm
2
rubeola
2
scarlatina
2
scarlet fever(expression, idiom, disease)
2
tetanus
2
tonsilitis
2
varicella
2
variola
2
whooping cough(expression, idiom, disease)
2
yellow fever(expression, idiom, disease)
2
yellow jack(expression, idiom, disease)
1
malarial fever(expression, idiom, disease)
1
Cancer(noun, disorder, growth, defect, sickness)
1
ache(noun, disorder, condition, illness, sickness)
1
acute articular rheumatism(expression, idiom)
1
acute bronchitis
1
adenoiditis
1
affection(noun, disorder, illness, defect, sickness)
1
affliction(noun, disorder, disease, weakness, collapse)
1
ailing(noun, disorder, disease, weakness, collapse)
11 years ago|3.9k views|share |citing 
APASmart Define. (2015). flu thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/flu/thesaurus/synonyms
ChicagoSmart Define. 2015. "flu thesaurus" https://smartdefine.org/flu/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, flu thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/flu/thesaurus/synonyms>.
MLASmart Define. "flu thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/flu/thesaurus/synonyms>