100 entries under dull topic. ×

26
dirty(verb, adjective, hurt, cause)
20
mucky(adjective, nasty, dark, gloomy)
18
murky(adjective, clear, soft, obscure)
17
dim(verb, adjective, cover, reduce)
15
obscure(verb, adjective, soft, flat)
15
dingy(adjective, soft, obscure, flat)
13
soil(noun, verb, hurt, harm)
11
cloudy(adjective, clear, soft, obscure)
11
tarnish(verb, hurt, reduce, diminish)
11
opaque(adjective, soft, obscure, flat)
9
hazy(adjective, soft, obscure, flat)
9
indistinct(adjective, soft, obscure, flat)
8
begrime(verb, dirty, foul, stain)
8
dark(adjective, soft, obscure, flat)
8
drab(adjective, soft, obscure, flat)
8
gloomy(adjective, dark, dirty, dim)
8
grungy(adjective, nasty, dirty, foul)
8
sully(verb, hurt, spoil, dirty)
8
taint(verb, ruin, spoil, dirty)
7
cloud(verb, cover, hurt, reduce)
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APASmart Define. (2015). muddy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/muddy/thesaurus/synonyms
ChicagoSmart Define. 2015. "muddy thesaurus" https://smartdefine.org/muddy/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, muddy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/muddy/thesaurus/synonyms>.
MLASmart Define. "muddy thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/muddy/thesaurus/synonyms>