15 entries under obscure topic. ×

5
ebon(adjective, dark, gloomy, pitch)
4
pitch-dark(adjective, dark, gloomy, pitch)
3
charcoal(adjective, dark, gloomy, pitch)
2
atramentous(adjective, dark, gloomy, pitch)
2
inklike(adjective, dark, gloomy, pitch)
2
melanoid(adjective, dark, gloomy, pitch)
2
obsidian(adjective, dark, gloomy, pitch)
2
piceous(adjective, dark, gloomy, pitch)
2
pitch(adjective, dark, gloomy, black)
2
raven(adjective, dark, gloomy, pitch)
2
sloe(adjective, dark, gloomy, pitch)
2
sombre(adjective, dark, gloomy, pitch)
2
starless(adjective, dark, gloomy, pitch)
2
stygian(adjective, dark, gloomy, pitch)
2
swart(adjective, dark, gloomy, pitch)
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APASmart Define. (2015). onyx thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/onyx/thesaurus/synonyms
ChicagoSmart Define. 2015. "onyx thesaurus" https://smartdefine.org/onyx/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, onyx thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/onyx/thesaurus/synonyms>.
MLASmart Define. "onyx thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/onyx/thesaurus/synonyms>