89 entries under unpolluted topic. ×

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neat as a pin(expression, adjective, idiom, fresh, sparkling)
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orderly(adjective, fresh, sparkling, spotless)
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out-and-out(adjective, clean, wholesome, unadulterated)
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pellucid(adjective, clean, wholesome, unadulterated)
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perfect(adjective, clean, pure, faultless, wholesome)
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plain(adjective, clean, wholesome, unadulterated)
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plenary(adjective, clean, wholesome, unadulterated)
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pure and simple(expression, adjective, idiom, clean, wholesome)
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real(adjective, clean, wholesome, unadulterated)
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shining(adjective, fresh, sparkling, spotless)
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simple(adjective, clean, fresh, wholesome, sparkling)
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sparkling(adjective, fresh, spotless, unsoiled)
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speckless(adjective, fresh, sparkling, spotless)
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spic and span(expression, adjective, idiom, fresh, sparkling)
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squeaky(adjective, fresh, sparkling, spotless)
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straight(adjective, clean, wholesome, unadulterated)
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tidy(adjective, fresh, sparkling, spotless)
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total(adjective, clean, wholesome, unadulterated)
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transparent(adjective, clean, wholesome, unadulterated)
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trim(adjective, fresh, sparkling, spotless)
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APASmart Define. (2015). sterilized thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sterilized/thesaurus/synonyms
ChicagoSmart Define. 2015. "sterilized thesaurus" https://smartdefine.org/sterilized/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, sterilized thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sterilized/thesaurus/synonyms>.
MLASmart Define. "sterilized thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/sterilized/thesaurus/synonyms>