21
muck(noun, waste, clean, refuse, substance)
20
slime(noun, waste, clean, refuse, corruption)
18
ooze(noun, clean, liquid, dirt, swamp)
16
goo(noun, food, substance, dirt, swamp)
15
mud(noun, waste, refuse, corruption, deposit)
15
mire(noun, waste, clean, refuse, corruption)
12
filth(noun, food, waste, refuse, pollution)
12
gunk(noun, food, dirt, swamp, corn)
10
silt(noun, waste, refuse, corruption, deposit)
9
dirt(noun, waste, refuse, dishonesty, corruption)
8
slush(noun, waste, clean, refuse, mess)
6
gook
6
guck
6
scum(noun, mud, muck, goo, gunk)
6
sediment(noun, waste, refuse, corruption, deposit)
5
slop(noun, waste, clean, refuse, corruption)
5
slosh
4
dregs(noun, waste, refuse, dishonesty, corruption)
4
soil(noun, waste, refuse)
4
excrement(noun, waste, refuse, dishonesty, corruption)
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APASmart Define. (2015). sludge thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sludge/thesaurus/synonyms
ChicagoSmart Define. 2015. "sludge thesaurus" https://smartdefine.org/sludge/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, sludge thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sludge/thesaurus/synonyms>.
MLASmart Define. "sludge thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/sludge/thesaurus/synonyms>