22
toxicity(noun, pollution, taint, contamination, unhealthiness)
21
contamination(noun, pollution, taint, unhealthiness, insalubrity)
19
insalubrity(noun, unhealthiness, toxicity, noxiousness)
19
noxiousness(noun, unhealthiness, insalubrity, toxicity)
19
unhealthiness(noun, unhealthiness, insalubrity, toxicity, noxiousness)
6
infection(noun, pollution, taint, contamination, unhealthiness)
4
deadliness(noun, unhealthiness, insalubrity, toxicity, noxiousness)
3
disease(noun, pollution, taint, contamination, unhealthiness)
3
malignancy(noun, unhealthiness)
3
taint(noun, pollution, contamination)
2
communicability(noun, pollution, taint, contamination)
2
poison(pollution, taint, contamination)
2
virus(pollution, taint, contamination)
1
carrier
1
contagion(noun, pollution, taint, contamination)
1
contagious
1
corruption(noun, pollution, taint, contamination)
1
epidemiology
1
flu(noun, pollution, taint, contamination)
1
infectiousness
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APASmart Define. (2015). contagiousness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/contagiousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "contagiousness thesaurus" https://smartdefine.org/contagiousness/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, contagiousness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/contagiousness/thesaurus/synonyms>.
MLASmart Define. "contagiousness thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/contagiousness/thesaurus/synonyms>