Synonyms|274Antonyms|152|Broader|5Narrower|0Related|825
4
filthy(adjective, dirty, polluted)
4
dirty
4
foul
4
impure
4
polluted
4
tainted
4
unclean(adjective, dirty)
3
sullied
2
adulterated
2
black
2
gross
2
stained
1
begrimed
1
besmirched
1
corrupted
1
defiled
1
dingy
1
festering
1
immodest
1
indecent
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APASmart Define. (2015). unpolluted thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unpolluted/thesaurus/antonyms
ChicagoSmart Define. 2015. "unpolluted thesaurus" https://smartdefine.org/unpolluted/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unpolluted thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unpolluted/thesaurus/antonyms>.
MLASmart Define. "unpolluted thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/unpolluted/thesaurus/antonyms>