94 entries under unpolluted topic. ×

24
sanitary(adjective, clean, pure, fresh, neat)
15
pure(adjective, clean, fresh, neat, wholesome)
13
aseptic(adjective, excite, clean, pure, fresh)
13
uncontaminated(adjective, clean, pure, fresh, neat)
12
disinfected(adjective, clean, pure, fresh, wholesome)
11
antiseptic(adjective, clean, pure, fresh, dead)
11
hygienic(adjective, clean, pure, fresh, healthy)
10
clean(adjective, poor, clean, pure, fresh)
9
infecund(adjective, weak, clean, dead, empty)
8
sterilized(adjective, clean, pure, fresh, neat)
8
uninventive(adjective, dull, dry, boring, rich)
7
uninfected(adjective, clean, pure, fresh, dead)
7
unsullied(adjective, clean, perfect, pure, fresh)
6
unsoiled(adjective, clean, perfect, pure, fresh)
5
immaculate(adjective, clean, perfect, pure, fresh)
5
pasteurized(adjective, clean, dry, dead, bare)
5
spotless(adjective, clean, perfect, pure, natural)
5
stainless(adjective, clean, perfect, pure, fresh)
5
uncreative(adjective, dull, dry, boring, rich)
5
unstained(adjective, clean, perfect, pure, fresh)
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APASmart Define. (2016). sterile thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/sterile/thesaurus/synonyms
ChicagoSmart Define. 2016. "sterile thesaurus" https://smartdefine.org/sterile/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, sterile thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sterile/thesaurus/synonyms>.
MLASmart Define. "sterile thesaurus" 1 March 2016. Web. 28 September 2026. <https://smartdefine.org/sterile/thesaurus/synonyms>