204 entries under foul topic. ×

5
injure(verb, break, dull, hurt, ruin)
5
noisome(adjective, bad, blue, nasty, offensive)
5
obnoxious(adjective, bad, offensive, unpleasant)
5
revolting(adjective, bad, evil, nasty, offensive)
5
shady(adjective, bad, wrong, nasty, cruel)
5
smutch(verb, cause, clean, stain)
5
tar(verb, dull, cover, hurt, cause)
5
ugly(adjective, calm, bad, hard, evil)
5
unhygienic(adjective, unhealthy, filthy, unclean)
5
unrefined(adjective, bad, blue, nasty, offensive)
4
adulterate(verb, hurt, harm, spoil, corrupt)
4
coat(verb, cover, cause, spread)
4
dungy(adjective, filthy, unclean, soiled)
4
harm(verb, break, dull, hurt, ruin)
4
objectionable(adjective, bad, offensive, unpleasant)
4
off-color(adjective, bad, blue, nasty, offensive)
4
racy(adjective, society, sex, metters)
4
repugnant(adjective, bad, blue, evil, nasty)
4
scuzzy(adjective, filthy, unclean, soiled)
4
straggly(adjective, filthy, unclean, soiled)
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APASmart Define. (2016). dirty thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/dirty/thesaurus/synonyms
ChicagoSmart Define. 2016. "dirty thesaurus" https://smartdefine.org/dirty/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, dirty thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/dirty/thesaurus/synonyms>.
MLASmart Define. "dirty thesaurus" 14 March 2016. Web. 29 September 2026. <https://smartdefine.org/dirty/thesaurus/synonyms>