6
blurry
6
dusk(noun, adjective, dull, dark, gloomy)
6
equivocal(adjective, hard, obscure, difficult, uncertain)
6
faint(adjective, dull, obscure, dark, gloomy)
6
fuzzy(adjective, dull, obscure, flat, dark)
6
smoky(adjective, muddy, clouded)
5
baffling(adjective, hard)
5
indefinite(dull, obscure, gloomy, uncertain, dim)
5
puzzling(adjective, obscure, uncertain, vague, indefinite)
5
shady(adjective, dull, dark, gloomy, dim)
5
somber(adjective, dull, soft, obscure, flat)
5
sunless(adjective, dull, dark, gloomy, dim)
5
unintelligent(adjective, dull, silly, foolish, stupid)
4
drab(adjective, dull, soft, obscure, flat)
4
blind(adjective, soft, obscure, flat, dark)
4
darkened(adjective, dull, dark, gloomy, dim)
4
deep(adjective, set, solid, heavy, doubtful)
4
dirty(adjective, muddy, clouded)
4
doltish
4
indeterminate(adjective, obscure, uncertain, vague, unclear)
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APASmart Define. (2016). opaque thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/opaque/thesaurus/synonyms
ChicagoSmart Define. 2016. "opaque thesaurus" https://smartdefine.org/opaque/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, opaque thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/opaque/thesaurus/synonyms>.
MLASmart Define. "opaque thesaurus" 29 February 2016. Web. 22 September 2026. <https://smartdefine.org/opaque/thesaurus/synonyms>