4
fade(verb, dull, reduce, diminish, lower)
4
feculent
4
fouled(adjective, nasty, foul, sloppy, filthy)
4
grime(verb, dull, dirty, foul, stain)
4
lackluster
4
leaden(adjective, dull, soft, obscure, flat)
4
lousy(adjective, nasty, foul, sloppy, filthy)
4
mud(noun, verb, clean, soil)
4
squishy(adjective, soft, soggy, doughy)
4
stained(adjective, nasty, dirty, foul, sloppy)
4
subdued(adjective, soft, obscure, flat, dark)
4
thick(adjective, dense, cloudy, indistinct, impervious)
4
uncleanly
3
addled(adjective, dark, cloudy)
3
ambiguous(adjective, obscure, uncertain, vague, unclear)
3
besmirched
3
bespatter
3
clear as mud(expression, idiom, unintelligibility)
3
clouded(adjective, obscure, dense, cloudy, indefinite)
3
contaminating
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APASmart Define. (2015). muddy thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/muddy/thesaurus/synonyms
ChicagoSmart Define. 2015. "muddy thesaurus" https://smartdefine.org/muddy/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, muddy thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/muddy/thesaurus/synonyms>.
MLASmart Define. "muddy thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/muddy/thesaurus/synonyms>