7
scumbag(noun, person, individual, degenerate, dip)
6
muck(noun, waste, mess, trash, garbage)
6
sediment(noun, waste, refuse, mess, trash)
6
slime(noun, waste, mess, grease, muck)
6
spume(noun, dirt, froth)
5
crust(noun, layer, dirt, impurities, dirty froth)
5
deposit(noun, residue)
5
grounds(noun, uncleanness, residue)
5
masses(noun, mass, crowd, throng, multitude)
5
precipitate(noun, uncleanness, residue)
5
refuse(noun, waste, informal, trash, unimportance)
5
residue(noun, part, waste, refuse, rest)
5
sludge(noun, mud, muck, goo, gunk)
5
vermin(noun, despicable, commonalty)
4
algae(noun, dirt, rootless)
4
cur(noun, informal, rotten, lowly, bad man)
4
dirt(noun, mess, stain, pollution, corruption)
4
filth(noun, waste, refuse, mess, layer)
4
lees(trash, rubbish, uncleanness, remains)
4
mass(noun, crowd, throng, multitude, mob)
11 years ago|9.3k views|share |citing 
APASmart Define. (2015). scum thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/scum/thesaurus/synonyms
ChicagoSmart Define. 2015. "scum thesaurus" https://smartdefine.org/scum/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, scum thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/scum/thesaurus/synonyms>.
MLASmart Define. "scum thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/scum/thesaurus/synonyms>