24 entries under dark topic. ×

13
oracular(adjective, uncertain, mysterious, prediction)
6
cryptic(adjective, uncertain, mysterious, unfathomable)
3
inscrutable(adjective, solid, uncertain, mysterious)
3
mysterious(adjective, solid, uncertain, dense)
3
occult(adjective, uncertain, mysterious, psychic)
2
incomprehensible(adjective, solid, uncertain, mysterious)
2
recondite(uncertain, mysterious)
1
Delphian(adjective, uncertain, mysterious, prophetic)
1
inexplicable(adjective, solid, uncertain, mysterious)
1
obscure(solid, uncertain, mysterious, dense)
1
perplexing(uncertain, mysterious, unfathomable, impenetrable)
1
puzzling(uncertain, mysterious, unfathomable, impenetrable)
1
secret(uncertain, mysterious)
1
unfathomable(solid, uncertain, mysterious, dense)
1
unintelligible(solid, uncertain, mysterious, dense)
0
ambiguous(uncertain, mysterious)
0
doubtful(uncertain, mysterious)
0
equivocal(uncertain, mysterious)
0
indecipherable(uncertain, mysterious)
0
sphinxlike(uncertain, mysterious)
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APASmart Define. (2015). sibylline thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sibylline/thesaurus/synonyms
ChicagoSmart Define. 2015. "sibylline thesaurus" https://smartdefine.org/sibylline/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, sibylline thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sibylline/thesaurus/synonyms>.
MLASmart Define. "sibylline thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/sibylline/thesaurus/synonyms>