Synonyms|380Antonyms|13|Broader|2Narrower|0Related|410

48 entries under nefarious topic. ×

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cryptic(adjective, evil, mysterious, threatening)
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damnable(adjective, evil, mysterious, threatening)
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deep(adjective, evil, mysterious, threatening)
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enigmatic(adjective, evil, mysterious, threatening)
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esoteric(adjective, evil, mysterious, threatening)
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evil(adjective, mysterious, threatening, spooky)
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foul(adjective, evil, mysterious, threatening)
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hellish(adjective, evil, mysterious, threatening)
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hidden(adjective, evil, mysterious, threatening)
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horrible(adjective, dull, evil, gloomy, miserable)
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immoral(adjective, evil, mysterious, threatening)
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infamous(adjective, evil, mysterious, threatening)
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infernal(adjective, evil, mysterious, threatening)
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intricate(adjective, evil, mysterious, threatening)
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knotty(adjective, evil, mysterious, threatening)
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mysterious(adjective, evil, threatening, spooky)
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mystic(adjective, evil, mysterious, threatening)
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mystical(adjective, evil, mysterious, threatening)
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mystifying(adjective, evil, mysterious, threatening)
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not known(expression, adjective, evil, mysterious, threatening)
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APASmart Define. (2015). frowning thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/frowning/thesaurus/synonyms
ChicagoSmart Define. 2015. "frowning thesaurus" https://smartdefine.org/frowning/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, frowning thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/frowning/thesaurus/synonyms>.
MLASmart Define. "frowning thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/frowning/thesaurus/synonyms>