135 entries under foul topic. ×

6
dusty(adjective, nasty, dirty, sloppy)
6
horrible(adjective, blue, evil, nasty, offensive)
6
horrid(adjective, bad, evil, taste, offensive)
6
icky(adjective, bad, nasty, offensive, unpleasant)
6
murky(adjective, obscure, nasty, dark, gloomy)
6
outrageous(adjective, bad, blue, nasty, offensive)
6
repellent(adjective, bad, blue, evil, nasty)
6
sickening(adjective, bad, blue, evil, taste)
6
stained(adjective, nasty, dirty, sloppy)
6
wicked(adjective, dirty, coarse, vile, nasty)
5
X-rated(offensive, rude, dirty, coarse)
5
bad(adjective, evil, nasty, low, offensive)
5
objectionable(adjective, bad, offensive, unpleasant)
5
sleazy(adjective, evil, base, dirty)
5
sooty(adjective, nasty, dirty, sloppy)
5
sullied(adjective, nasty, offensive, unpleasant, dirty)
5
unsanitary(adjective, nasty, dirty, sloppy)
5
untidy(adjective, nasty, dirty, sloppy)
4
crummy(adjective, nasty, unpleasant, awful, terrible)
4
inelegant(adjective, nasty, rude, dirty)
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APASmart Define. (2015). filthy thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/filthy/thesaurus/synonyms
ChicagoSmart Define. 2015. "filthy thesaurus" https://smartdefine.org/filthy/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, filthy thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/filthy/thesaurus/synonyms>.
MLASmart Define. "filthy thesaurus" 17 July 2015. Web. 26 September 2026. <https://smartdefine.org/filthy/thesaurus/synonyms>