9
shady(adjective, dirty, corrupt, dishonest, raw)
9
sloppy(adjective, dull, flat, nasty, gloomy)
9
smirch(verb, spoil, dirty, stain, smear)
9
snarl(verb, order, disorder, disturb, catch)
9
stale(adjective, quiet, strong, offensive, sweet)
9
suggestive(adjective, society, sex, metters, feature)
9
tangle(verb, action, order, disorder, disturb)
9
tempestuous(adjective, nature, bad, severe, awful)
9
unsanitary(adjective, nasty, dirty, sloppy, filthy)
8
accursed(adjective, taste, nasty, awful, terrible)
8
choke off(verb, expression, phrasal verb, action, doing dirty)
8
crooked(adjective, mean, base, corrupt, dishonest)
8
cruel(adjective, adverb, mean, evil, low)
8
debased(adjective, bad, wrong, evil, nasty)
8
dingy(adjective, bad, nasty, dark, awful)
8
discolor(verb, hurt, catch, harm, spoil)
8
dissolute(verb, adjective, feature, action, bad)
8
flat(verb, adjective, feature, action, bad)
8
fouled(verb, adjective, nasty, dirty, sloppy)
8
grave(noun, verb, adjective, feature, action)
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APASmart Define. (2016). foul thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/foul/thesaurus/synonyms
ChicagoSmart Define. 2016. "foul thesaurus" https://smartdefine.org/foul/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, foul thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/foul/thesaurus/synonyms>.
MLASmart Define. "foul thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/foul/thesaurus/synonyms>