198 entries under adjective topic. ×

6
equivocal(hard, obscure, difficult, uncertain)
6
faint(dull, obscure, dark, gloomy)
6
fuzzy(dull, obscure, flat, dark)
6
smoky(muddy, clouded)
5
baffling
5
puzzling(obscure, uncertain, vague, indefinite)
5
shady(dull, dark, gloomy, dim)
5
somber(dull, soft, obscure, flat)
5
sunless(dull, dark, gloomy, dim)
5
unintelligent(dull, silly, foolish, stupid)
4
drab(dull, soft, obscure, flat)
4
blind(soft, obscure, flat, dark)
4
darkened(dull, dark, gloomy, dim)
4
deep(set, solid, heavy, doubtful)
4
dirty(muddy, clouded)
4
indeterminate(obscure, uncertain, vague, unclear)
4
milky(white, cloudy)
4
mysterious
4
mystifying(unfathomable, impenetrable, unintelligible, puzzling)
4
nubilous(hard, gloomy, gray, dense)
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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>