97 entries under obscure topic. ×

2
invisible(dark, deep, unknown, heavenly)
2
reticent(private, unknown, clandestine, underground)
2
sequestered(dark, secret, unknown, hidden)
2
shrouded(adjective, secret, unknown, hidden)
2
transmundane
2
under cover(expression, dark, unseen)
2
unexposed(dark, secret, unknown, hidden)
1
Delphian(adjective, evil, dark, uncertain)
1
abstract(hard, delicate, complex, rational)
1
acroamatic(complex, deep, thoughtful, reflective)
1
cloak-and-dagger(adjective, full, unknown, clandestine)
1
hermetical(dark, secret, unknown, hidden)
1
imperceivable(dark, secret, unknown, hidden)
1
indiscernible(solid, dark, unknown, dense)
1
little known(strange, new, complex, remote)
1
magic(adjective, extraordinary, unusual, wonderful)
1
out-of-the-way(complex, unknown, clandestine, underground)
1
out of view(expression, idiom, dark, unknown)
1
retired(unknown, clandestine, underground, undisclosed)
1
screened(dark, secret, unknown, hidden)
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APASmart Define. (2016). mysterious thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/mysterious/thesaurus/synonyms
ChicagoSmart Define. 2016. "mysterious thesaurus" https://smartdefine.org/mysterious/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, mysterious thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/mysterious/thesaurus/synonyms>.
MLASmart Define. "mysterious thesaurus" 24 February 2016. Web. 30 September 2026. <https://smartdefine.org/mysterious/thesaurus/synonyms>