93 entries under unpolluted topic. ×

3
elegant(adjective, quiet, clear, simple, pure)
3
pristine(adjective, good, clear, honest, perfect)
3
speckless(adjective, clear, simple, pure, dirty)
3
sterilized(adjective, pure, fresh, bleak, neat)
3
unmingled(adjective, wholesome, unadulterated, uncontaminated)
3
unsmudged(adjective, clear, simple, pure, dirty)
3
vanilla(adjective, simple, plain, pure, dirty)
3
well-kept(adjective, clear, simple, pure, dirty)
2
dirt-free(adjective, fresh, sparkling, spotless)
2
germ-free(adjective, pure, bleak, wholesome)
2
laundered(adjective, clear, simple, pure, dirty)
2
pasteurized(adjective, bleak, wholesome, unadulterated)
1
apple-pie order(expression, adjective, dirty, fresh, regular)
1
authentic(adjective, simple, pure, natural, straightforward)
1
dirtless(adjective, clear, simple, pure, dirty)
1
intemerate(adjective, quiet, simple, pure, innocent)
1
lucid(adjective, quiet, clear, smooth, easy)
1
natural(adjective, simple, plain, pure, modest)
1
neat as a pin(expression, adjective, idiom, clear, simple)
1
pure and simple(expression, adjective, idiom, plain, pure)
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APASmart Define. (2016). clean thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/clean/thesaurus/synonyms
ChicagoSmart Define. 2016. "clean thesaurus" https://smartdefine.org/clean/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, clean thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/clean/thesaurus/synonyms>.
MLASmart Define. "clean thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/clean/thesaurus/synonyms>