88 entries under dull topic. ×

33
dark(adjective, obscure, gloomy, feature)
30
obscure(adjective, hard, soft, obscure)
26
hazy(adjective, light, soft, obscure)
23
cloudy(adjective, light, soft, obscure)
20
unclear(adjective, hard, obscure, flat)
19
murky(adjective, soft, obscure, flat)
18
vague(adjective, hard, obscure, difficult)
14
dim(adjective, light, simple, soft)
14
foggy(adjective, obscure, dark, gloomy)
13
nebulous(adjective, obscure, dark, gloomy)
11
misty(adjective, light, obscure, dark)
11
thick(adjective, close, strong, obscure)
10
turbid(adjective, set, obscure, flat)
10
blurred(adjective, light, obscure, flat)
10
muddy(adjective, soft, obscure, flat)
9
indistinct(adjective, soft, obscure, flat)
9
shadowy(adjective, soft, obscure, flat)
8
clouded(adjective, obscure, dark, gloomy)
8
dense(adjective, set, solid, dark)
8
dusky(adjective, soft, obscure, flat)
10 years ago|19k views|share |citing 
APASmart Define. (2016). opaque thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/opaque/thesaurus/synonyms
ChicagoSmart Define. 2016. "opaque thesaurus" https://smartdefine.org/opaque/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, opaque thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/opaque/thesaurus/synonyms>.
MLASmart Define. "opaque thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/opaque/thesaurus/synonyms>