| foreign body | |
| foul | |
| garbage | |
| grime(stain, pollution, corruption, contamination) | |
| hazardous waste(noun, contaminant) | |
| ingredient | |
| loss | |
| noxious waste(expression, idiom) | |
| pestilence(stain, pollution, corruption, contamination) | |
| poisoning(stain, pollution, corruption, contamination) | |
| rubbish | |
| scum(stain, pollution, corruption, contamination) | |
| smut | |
| spite | |
| stain(pollution, corruption, contamination) | |
| taint(stain, pollution, corruption, contamination) | |
| toxic waste(noun, contaminant) | |
| trash | |
| uncleanness(stain, pollution, corruption, contamination) | |
| unwanted substance |
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| APA | Smart Define. (2015). pollutant thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/pollutant/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pollutant thesaurus" https://smartdefine.org/pollutant/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, pollutant thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/pollutant/thesaurus/synonyms>. |
| MLA | Smart Define. "pollutant thesaurus" 21 April 2015. Web. 23 September 2026. <https://smartdefine.org/pollutant/thesaurus/synonyms> |