3
taint(verb, fix, ruin, dirty, enhance)
3
uncertain(adjective, dull, dark, slovenly)
3
unsterile(adjective, dull, dark, uncertain, slovenly)
3
untidy(adjective, dull, dark, dirty, uncertain)
3
vulgar
2
addicted
2
armed
2
augean
2
bad
2
befouled
2
besmear
2
bespatter
2
blackened
2
blasphemous
2
buggy
2
coarse
2
cobwebby
2
colly
2
contaminated(verb, adjective, dull, dark, uncertain)
2
cruddy
10 years ago|10k views|share |citing 
APASmart Define. (2016). clean thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/clean/thesaurus/antonyms
ChicagoSmart Define. 2016. "clean thesaurus" https://smartdefine.org/clean/thesaurus/antonyms (accessed September 20, 2026).
HarvardSmart Define 2016, clean thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/clean/thesaurus/antonyms>.
MLASmart Define. "clean thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/clean/thesaurus/antonyms>