76 entries under obscure topic. ×

4
sooty(adjective, dull, soft, flat)
3
crepuscular(adjective, dull, dark, gloomy)
3
dingy(adjective, dull, soft, flat)
3
dun(adjective, dull, soft, flat)
3
grimy(adjective, dull, soft, flat)
3
overcast(adjective, dull, soft, flat)
3
unlit(adjective, dull, soft, flat)
2
imperceptive(adjective, dull, hard, difficult)
2
imprecise
2
incoherent
2
inexplicit(adjective, uncertain, vague, unclear)
2
matte(adjective, soft, flat, dark)
2
obfuscous(adjective, dull, dark, gloomy)
2
soft(adjective, flat, dark, cold)
1
cold(adjective, soft, flat, dark)
1
ashen(adjective, soft, flat, dark)
1
bleary(adjective, dull, light, dark)
1
clear as dishwater(expression, uncertain, vague, unclear)
1
enigmatical(uncertain, vague, unclear, indefinite)
1
faded(adjective, dull, soft, flat)
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APASmart Define. (2016). opaque thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/opaque/thesaurus/synonyms
ChicagoSmart Define. 2016. "opaque thesaurus" https://smartdefine.org/opaque/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, opaque thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/opaque/thesaurus/synonyms>.
MLASmart Define. "opaque thesaurus" 29 February 2016. Web. 28 September 2026. <https://smartdefine.org/opaque/thesaurus/synonyms>