47 entries under nefarious topic. ×

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scowling(adjective, evil, mysterious, threatening)
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sinful(adjective, evil, mysterious, threatening)
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sulky(adjective, evil, mysterious, threatening)
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sullen(adjective, evil, mysterious, threatening)
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threatening(adjective, evil, mysterious, spooky)
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upset(adjective, evil, mysterious, threatening)
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vile(adjective, evil, mysterious, threatening)
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APASmart Define. (2015). abstruse thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms
ChicagoSmart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, abstruse thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>.
MLASmart Define. "abstruse thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms>