| grimy(adjective, unclean) | |
| grubby(adjective, unclean) | |
| grungy(adjective, unclean) | |
| icky(adjective, unclean) | |
| ill(adjective, baneful) | |
| ill health | |
| infect | |
| insalubrious(adjective, unclean) | |
| malign | |
| mucky(adjective, unclean) | |
| muddy(adjective, unclean) | |
| odious(adjective, unclean) | |
| offensive(adjective, unclean) | |
| pandemic(adjective, taking, widespread, catching, wide-ranging) | |
| pestilence | |
| scruffy(adjective, unclean) | |
| shabby(adjective, unclean) | |
| sloppy(adjective, unclean) | |
| slovenly(adjective, unclean) | |
| sordid(adjective, unclean) |
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| APA | Smart Define. (2015). infectious thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/infectious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "infectious thesaurus" https://smartdefine.org/infectious/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, infectious thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/infectious/thesaurus/synonyms>. |
| MLA | Smart Define. "infectious thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/infectious/thesaurus/synonyms> |