56 entries under adjective topic. ×

2
starless(obscure, dark, gloomy, pitch)
2
stygian(obscure, dark, gloomy, pitch)
2
swart(obscure, dark, gloomy, pitch)
1
dingy
1
livid
1
murky
1
pitch-dark pitchy(expression, dark, black, murky)
1
slate(dark, pitch, black, murky)
1
somber
0
achromatic
0
bare
0
bleak
0
brunet
0
clouded
0
coal
0
coaler(dark, pitch, inky, clouded)
0
colored
0
dense
0
dirty
0
disastrous
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APASmart Define. (2015). onyx thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/onyx/thesaurus/synonyms
ChicagoSmart Define. 2015. "onyx thesaurus" https://smartdefine.org/onyx/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, onyx thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/onyx/thesaurus/synonyms>.
MLASmart Define. "onyx thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/onyx/thesaurus/synonyms>