13
obscurity(noun, place, shade, uncertainty, gloom)
10
murkiness(noun, place, shade, dark, gloom)
10
opaqueness(noun, dullness, indirectness, muddiness, whiteness)
9
darkness(noun, place, shade, dark, gloom)
7
cloudiness(noun, obscurity, darkness, fogginess, mistiness)
7
fogginess(noun, obscurity, darkness, mistiness)
7
fuzziness(noun, obscurity, vagueness, fogginess, mistiness)
6
dimness(noun, place, shade, dark, gloom)
6
impenetrability(noun, incomprehensibility)
6
indistinctness(noun, uncertainty, obscurity, vagueness, fogginess)
5
dullness
5
equivocation(uncertainty, obscurity, vagueness, abstruseness, haziness)
5
indefiniteness(noun, uncertainty, obscurity, vagueness, abstruseness)
5
turbidity
4
abstruseness(uncertainty, obscurity, vagueness, haziness, incomprehensibility)
4
ambiguity(noun, uncertainty, obscurity, vagueness, abstruseness)
4
ambiguousness(noun, obscurity, vagueness, abstruseness, muddiness)
4
nebulosity(noun, obscurity, fogginess, mistiness)
4
unintelligibility
4
vagueness(noun, uncertainty, obscurity, abstruseness, haziness)
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APASmart Define. (2016). opacity thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/opacity/thesaurus/synonyms
ChicagoSmart Define. 2016. "opacity thesaurus" https://smartdefine.org/opacity/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, opacity thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/opacity/thesaurus/synonyms>.
MLASmart Define. "opacity thesaurus" 29 February 2016. Web. 20 September 2026. <https://smartdefine.org/opacity/thesaurus/synonyms>