4
opacity
4
unclearness
3
obscurity
2
abstruseness
2
ambiguity(noun, uncertainty)
2
enigma(noun, understand)
2
fog(noun, clarity, visibility)
2
murkiness
2
obscureness
2
opaqueness
2
paradox
1
cloudiness
1
clutter
1
confusion(calm, order, understanding)
1
darkness
1
dimness
1
equivocalness
1
equivocation
1
fogginess
1
haze(noun, air, clarity)
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APASmart Define. (2016). clearness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/clearness/thesaurus/antonyms
ChicagoSmart Define. 2016. "clearness thesaurus" https://smartdefine.org/clearness/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2016, clearness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/clearness/thesaurus/antonyms>.
MLASmart Define. "clearness thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/clearness/thesaurus/antonyms>