4
putrefaction(noun, waste, refuse, pollution, decay)
4
raininess
4
raunchiness(noun, state, quality, wrong, evil)
4
repulsiveness(noun, evil, unpleasantness, awfulness, dreadfulness)
4
scurrility(noun, state, quality, wrong, evil)
4
sordidness(noun, grime, filth, squalor)
3
badness(noun, evil, unpleasantness, disagreeableness, unlikableness)
3
cattiness(noun, malevolence)
3
crud(noun, waste, refuse, dishonesty, corruption)
3
depravity(noun, immorality, perversion)
3
heinousness(noun, evil, unpleasantness, awfulness, dreadfulness)
3
hideousness(noun, evil, unpleasantness)
3
muddiness(noun, uncleanness, filthiness, dirtiness, griminess)
3
nefariousness(noun, evil, unpleasantness, awfulness, dreadfulness)
3
pornography(noun, wrong, evil, rudeness, curse)
3
scurrilousness(noun, state, quality, wrong, evil)
3
squalidness(noun, grime, filthiness, filth, dirtiness)
3
terribleness(noun, evil, unpleasantness, awfulness, dreadfulness)
3
viciousness(noun, immorality, depravity, malevolence, perversion)
2
abomination(noun, wrong, evil, rudeness, curse)
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APASmart Define. (2015). foulness thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/foulness/thesaurus/synonyms
ChicagoSmart Define. 2015. "foulness thesaurus" https://smartdefine.org/foulness/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, foulness thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/foulness/thesaurus/synonyms>.
MLASmart Define. "foulness thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/foulness/thesaurus/synonyms>