Synonyms|1kAntonyms|192|Broader|16Narrower|19Related|1.2k

50 entries under nefarious topic. ×

2
atrocious(adjective, evil, threatening, spooky)
2
complicated(adjective, hard, evil, obscure, complex)
2
corrupt(adjective, evil, threatening, spooky)
2
dour(adjective, evil, threatening, spooky)
2
forbidding(adjective, evil, threatening, spooky)
2
foul(adjective, evil, threatening, spooky)
2
horrible(adjective, evil, threatening, spooky)
2
infernal(adjective, evil, threatening, spooky)
2
knotty(adjective, hard, evil, delicate, loose)
2
sinful(adjective, evil, threatening, spooky)
2
threatening(adjective, evil, spooky)
2
vile(adjective, evil, threatening, spooky)
2
wicked(adjective, evil, threatening, spooky)
1
Delphian(adjective, evil, obscure, dark, uncertain)
1
not known(expression, adjective, idiom, evil, deep)
0
bad(adjective, evil, threatening, spooky)
0
damnable(adjective, evil, threatening, spooky)
0
evil(adjective, threatening, spooky)
0
frowning(adjective, evil, threatening, spooky)
0
glowering(adjective, evil, threatening, spooky)
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APASmart Define. (2016). mysterious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mysterious/thesaurus/synonyms
ChicagoSmart Define. 2016. "mysterious thesaurus" https://smartdefine.org/mysterious/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, mysterious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mysterious/thesaurus/synonyms>.
MLASmart Define. "mysterious thesaurus" 24 February 2016. Web. 26 September 2026. <https://smartdefine.org/mysterious/thesaurus/synonyms>