204 entries under foul topic. ×

21
impure(noun, adjective, dull, bad, mixed)
20
pollute(verb, activity, break, dull, hurt)
20
tarnish(verb, activity, break, dull, cover)
19
soiled(adjective, dull, bad, flat, clean)
19
defile(verb, activity, break, dull, cover)
18
corrupt(verb, adjective, break, dull, bad)
18
raunchy(adjective, bad, blue, slang, nasty)
18
smear(verb, activity, dull, cover, attack)
17
grimy(adjective, dull, flat, clean, nasty)
17
untidy(adjective, shabby, filthy, unclean)
16
improper(adjective, immoral, vulgar, raw, wrong)
16
begrime(verb, dull, hurt, cause, clean)
16
besmirch(verb, cover, attack, hurt, mark)
16
indelicate(adjective, bad, blue, nasty, offensive)
16
messy(adjective, unpleasant, horrible, disagreeable)
16
naughty(adjective, sex, metter, vulgar, obscene)
16
slovenly(adjective, nasty, base, awful)
16
taint(verb, dull, cover, attack, hurt)
15
bedraggled(adjective, sloppy, filthy, unclean)
15
befoul(verb, attack, clean, corrupt)
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APASmart Define. (2016). dirty thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/dirty/thesaurus/synonyms
ChicagoSmart Define. 2016. "dirty thesaurus" https://smartdefine.org/dirty/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, dirty thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/dirty/thesaurus/synonyms>.
MLASmart Define. "dirty thesaurus" 14 March 2016. Web. 27 September 2026. <https://smartdefine.org/dirty/thesaurus/synonyms>