80 entries under foul topic. ×

4
begrimed(adjective, nasty, dirty, sloppy)
4
contaminated(verb, adjective, nasty, offensive, unpleasant)
4
polluted(adjective, nasty, offensive, unpleasant, dirty)
4
rank(adjective, offensive, unpleasant, awful, terrible)
4
shoddy(adjective, mean, poor, nasty, dirty)
4
slatternly(adjective, nasty, sloppy, filthy)
4
spotted(adjective, nasty, dirty, sloppy)
4
sullied(adjective, nasty, offensive, unpleasant, dirty)
4
uncleanly(adjective, nasty, base, dirty)
3
cruddy(adjective, nasty, dirty, sloppy)
3
dusty(adjective, nasty, dirty, sloppy)
3
icky(adjective, nasty, offensive, unpleasant)
3
revolting(adjective, taste, offensive, unpleasant, awful)
3
sooty(adjective, nasty, dirty, sloppy)
3
unhygienic(verb, adjective, nasty, dirty)
3
unsanitary(adjective, nasty, sloppy, filthy)
2
pigpen(adjective, nasty, offensive, unpleasant)
2
scuzzy(adjective, nasty, dirty, sloppy)
2
smudged(adjective, nasty, dirty, sloppy)
2
stinking(adjective, offensive, unpleasant, awful, terrible)
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APASmart Define. (2015). squalid thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/squalid/thesaurus/synonyms
ChicagoSmart Define. 2015. "squalid thesaurus" https://smartdefine.org/squalid/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, squalid thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/squalid/thesaurus/synonyms>.
MLASmart Define. "squalid thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/squalid/thesaurus/synonyms>