94 entries under unpolluted topic. ×

4
decontaminated(adjective, clean, pure, dry, fresh)
4
germ-free(adjective, clean, pure, wholesome)
4
neat(adjective, clean, pure, fresh, wholesome)
4
refined(adjective, clean, perfect, pure, natural)
4
taintless(adjective, clean, perfect, natural, fresh)
3
orderly(adjective, clean, fresh, sparkling)
3
pristine(adjective, clean, perfect, pure, wholesome)
3
tidy(adjective, clean, fresh, sparkling)
3
unadulterated(adjective, clean, perfect, pure, fresh)
3
wholesome(adjective, clean, perfect, pure, fresh)
2
blank(adjective, fresh, sparkling, spotless)
2
clear(adjective, clean, fresh, wholesome, sparkling)
2
purified(adjective, clean, perfect, pure, fresh)
2
unmixed(adjective, clean, wholesome, unadulterated)
2
untainted(adjective, clean, perfect, pure, natural)
1
intemerate(adjective, clean, wholesome, unadulterated)
1
snowy(adjective, clean, perfect, natural, fresh)
1
straight(adjective, clean, wholesome, unadulterated)
1
unblemished(adjective, clean, pure, fresh, neat)
1
undebased(adjective, clean, perfect, pure, natural)
10 years ago|13k views|share |citing 
APASmart Define. (2016). sterile thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sterile/thesaurus/synonyms
ChicagoSmart Define. 2016. "sterile thesaurus" https://smartdefine.org/sterile/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, sterile thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sterile/thesaurus/synonyms>.
MLASmart Define. "sterile thesaurus" 1 March 2016. Web. 29 September 2026. <https://smartdefine.org/sterile/thesaurus/synonyms>