7
grievous(adjective, bad, tough, severe, sad)
7
harsh(adjective, feature, description, attribute, aspect)
7
hellish(adjective, evil, mysterious, threatening, nefarious)
7
ill-lighted(adjective, feature, description, characteristics, gloomy)
7
inauspicious(adjective, dull, gloomy, miserable, warning)
7
muddy(adjective, dull, soft, obscure, flat)
7
mystical(adjective, hard, evil, obscure, strange)
7
rayless(adjective, gloomy, lack, dim, black)
7
ruthless(adjective, feature, description, attribute, aspect)
7
shocking(adjective, feature, description, characteristics, characteristic)
7
tanned(adjective, feature, characteristic, appearance, colour)
7
uninviting(adjective, feature, description, attribute, aspect)
7
unspeakable(adjective, feature, description, characteristics, characteristic)
7
wickedness(noun, adjective, feature, description, characteristics)
6
blackish(adjective, gloomy, lack, color, dim)
6
depressed(adjective, unhappy, dull, character, gloomy)
6
despondent(adjective, dull, character, unhappy, gloomy)
6
ill-lit(adjective, characteristic, color, feature, shade)
6
ill-omened(adjective, feature, description, characteristics)
6
indeterminate(adjective, feature, description, characteristics, unclear)
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APASmart Define. (2016). dark thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/dark/thesaurus/synonyms
ChicagoSmart Define. 2016. "dark thesaurus" https://smartdefine.org/dark/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, dark thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/dark/thesaurus/synonyms>.
MLASmart Define. "dark thesaurus" 3 April 2016. Web. 21 September 2026. <https://smartdefine.org/dark/thesaurus/synonyms>