93 entries under unpolluted topic. ×

1
safe(adjective, good, dull, clear, honest)
1
spic and span(expression, adjective, idiom, clear, simple)
1
squeaky(adjective, clear, simple, pure, dirty)
1
transparent(adjective, quiet, clear, smooth, easy)
1
undebased(adjective, perfect, pure, natural, neat)
0
neat as a button(expression, adjective, idiom, clear, simple)
0
boiled down(expression, pure, refined, purified)
0
limpid(adjective, wholesome, unadulterated, uncontaminated)
0
pellucid(adjective, wholesome, unadulterated, uncontaminated)
0
plenary(adjective, wholesome, unadulterated, uncontaminated)
0
real(adjective, pure, natural, genuine, wholesome)
0
twenty-four carat(expression, adjective, wholesome, unadulterated)
0
undecayed(adjective, pure, unadulterated, antiseptic)
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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>