358 entries under adjective topic. ×

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dreadful(description, attribute, feature, characteristic)
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dun(soft, obscure, flat, gloomy)
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esoteric(feature, characteristic, obscure, description)
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eventide(noun, close, black, darkness)
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fatalistic(feature, character, description, behaviour)
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flagitious(feature, description, characteristics, characteristic)
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frightful(description, attribute, feature, characteristic)
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ghastly(description, attribute, feature, characteristic)
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grisly(description, attribute, feature, characteristic)
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gruesome(description, attribute, feature, characteristic)
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harrowing(description, attribute, feature, characteristic)
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hideous(description, attribute, feature, characteristic)
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horrendous(description, attribute, feature, characteristic)
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hostile(tough, severe, harsh, cruel)
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impenetrable(feature, characteristic, obscure, description)
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indefinite(dull, weak, rough, strange)
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infamous(evil, mysterious, threatening, nefarious)
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infernal(evil, mysterious, threatening, nefarious)
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intricate(hard, evil, delicate, loose)
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invisible(obscure, superior, mysterious, unknown)
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APASmart Define. (2016). dark thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/dark/thesaurus/synonyms
ChicagoSmart Define. 2016. "dark thesaurus" https://smartdefine.org/dark/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, dark thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/dark/thesaurus/synonyms>.
MLASmart Define. "dark thesaurus" 3 April 2016. Web. 24 September 2026. <https://smartdefine.org/dark/thesaurus/synonyms>