- Definitions|0
- Thesaurus|47
- Abbreviations|1
| contaminant(noun, pollution, contamination, contaminator) | |
| impurity(noun, pollution, contamination, contaminant) | |
| pollution(stain, corruption, contamination) | |
| dirt(stain, pollution, corruption, contamination) | |
| filth(pollution, contamination) | |
| grit(noun, punishment, meed, gravel, particles) | |
| pollutant(stain, pollution, corruption, contamination) | |
| adulterant | |
| adulteration(stain, pollution, corruption, contamination) | |
| chemical | |
| contamination(stain, pollution, corruption) | |
| contaminator(noun, contaminant) | |
| corruption(stain, pollution, contamination) | |
| defilement(stain, pollution, corruption, contamination) | |
| dirtiness(pollution, contamination) | |
| dust | |
| gravel | |
| grime(stain, pollution, corruption, contamination) | |
| impurities | |
| infection(pollution, contamination) |
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| APA | Smart Define. (2015). foreign matter thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/foreign_matter/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "foreign matter thesaurus" https://smartdefine.org/foreign_matter/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, foreign matter thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/foreign_matter/thesaurus/synonyms>. |
| MLA | Smart Define. "foreign matter thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/foreign_matter/thesaurus/synonyms> |