135 entries under foul topic. ×

9
noisome(adjective, bad, blue, taste, nasty)
9
repugnant(adjective, good, bad, blue, evil)
8
cruddy(adjective, nasty, dirty, sloppy)
8
fetid(adjective, nasty, offensive, unpleasant, dirty)
8
immodest(adjective, blue, nasty, offensive, rude)
8
nauseating(adjective, bad, evil, taste, offensive)
8
raw(adjective, nasty, vulgar, rude, dirty)
8
slimy(adjective, nasty, dirty, sloppy)
8
unkempt(adjective, nasty, dirty, sloppy)
8
unwashed(adjective, nasty, dirty, sloppy)
7
awful(adjective, bad, nasty, offensive, unpleasant)
7
contaminated(verb, adjective, nasty, offensive, unpleasant)
7
messy(verb, adjective, nasty, unpleasant, dirty)
7
scummy(adjective, nasty, dirty, sloppy)
7
ugly(adjective, bad, evil, nasty, offensive)
7
uncleanly(adjective, bad, clean, low, offensive)
7
wanton(adjective, evil, offensive, dirty, coarse)
6
bedraggled(adjective, nasty, dirty, sloppy)
6
begrimed(adjective, nasty, dirty, sloppy)
6
disheveled(adjective, nasty, dirty, wretched)
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APASmart Define. (2015). filthy thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/filthy/thesaurus/synonyms
ChicagoSmart Define. 2015. "filthy thesaurus" https://smartdefine.org/filthy/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, filthy thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/filthy/thesaurus/synonyms>.
MLASmart Define. "filthy thesaurus" 17 July 2015. Web. 27 September 2026. <https://smartdefine.org/filthy/thesaurus/synonyms>