| hurt | |
| ill health(expression, disorder, disease, sickness, affliction) | |
| impurity(noun, abuse, harm, deterioration, immorality) | |
| indirect infection | |
| infections | |
| infectious | |
| infectiousness | |
| infliction(noun, disease) | |
| influence(noun, verb) | |
| infusion | |
| insalubrity(noun, unhealthiness) | |
| insanitation(noun, pollution, taint, contamination) | |
| irritant(bother, annoyance, nuisance) | |
| irritation(noun, bother, annoyance, bug, plague) | |
| malignancy(noun, unhealthiness) | |
| matter(noun, discharge) | |
| microbe(noun, illness, sickness, germ, microorganism) | |
| mischief | |
| misfortune(noun, bane) | |
| moving spirit |
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| APA | Smart Define. (2015). infection thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/infection/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "infection thesaurus" https://smartdefine.org/infection/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, infection thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/infection/thesaurus/synonyms>. |
| MLA | Smart Define. "infection thesaurus" 12 November 2015. Web. 26 September 2026. <https://smartdefine.org/infection/thesaurus/synonyms> |