198 entries under adjective topic. ×

9
enigmatic(hard, obscure, uncertain, vague)
9
indistinct(dull, soft, obscure, flat)
9
shadowy(dull, soft, obscure, flat)
8
arcane
8
clouded(dull, obscure, dark, gloomy)
8
dense(dull, set, solid, dark)
8
dusky(dull, soft, obscure, flat)
8
gloomy(dull, flat, dark, dirty)
8
obtuse(hard, slow)
8
tenebrous(dull, hard, obscure, difficult)
8
unfathomable
7
abstruse(hard, obscure, difficult, uncertain)
7
filmy(muddy, covered, clouded, blurry)
7
obfuscated(obscure, muddy, clouded)
7
perplexing(hard, obscure, difficult, unfathomable)
7
uncertain(hard, obscure, difficult, vague)
6
ambiguous(obscure, uncertain, vague, unclear)
6
amorphous
6
blurry
6
dusk(noun, dull, dark, gloomy)
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APASmart Define. (2016). opaque thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/opaque/thesaurus/synonyms
ChicagoSmart Define. 2016. "opaque thesaurus" https://smartdefine.org/opaque/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, opaque thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/opaque/thesaurus/synonyms>.
MLASmart Define. "opaque thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/opaque/thesaurus/synonyms>