50 entries under dark topic. ×

5
indecipherable(adjective, obscure, uncertain, incomprehensible)
5
latent(obscure, secret, unknown, hidden)
5
undisclosed(obscure, secret, unknown, hidden)
4
doubtful(unusual, strange, uncertain, dubious)
4
shadowy(adjective, obscure, happy, perfect)
4
unrevealed(adjective, obscure, new, deep)
3
secluded(adjective, obscure, secret, unknown)
3
sibylline(solid, uncertain, dense, unfathomable)
2
close(obscure, solid, reticent, unknown)
2
clouded(adjective, obscure, secret, private)
2
eclipsed(obscure, secret, unknown, hidden)
2
hermetic(obscure, solid, deep, unknown)
2
invisible(obscure, deep, unknown, heavenly)
2
sequestered(obscure, secret, unknown, hidden)
2
under cover(expression, obscure, unseen)
2
unexposed(obscure, secret, unknown, hidden)
1
Delphian(adjective, evil, obscure, uncertain)
1
hermetical(obscure, secret, unknown, hidden)
1
imperceivable(obscure, secret, unknown, hidden)
1
indiscernible(obscure, solid, unknown, dense)
10 years ago|26k views|share |citing 
APASmart Define. (2016). mysterious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/mysterious/thesaurus/synonyms
ChicagoSmart Define. 2016. "mysterious thesaurus" https://smartdefine.org/mysterious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, mysterious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/mysterious/thesaurus/synonyms>.
MLASmart Define. "mysterious thesaurus" 24 February 2016. Web. 28 September 2026. <https://smartdefine.org/mysterious/thesaurus/synonyms>