62 entries under supernatural topic. ×

19
unfathomable(adjective, hard, knowledge, obscure, difficult)
13
arcane(adjective, obscure, solid, strange, doubtful)
13
unintelligible(adjective, knowledge, obscure, solid, dark)
8
mystic(adjective, obscure, solid, dark, superior)
7
unknowable(adjective, obscure, solid, dark, superior)
6
unaccountable(adjective, obscure, solid, strange, doubtful)
5
hidden(adjective, obscure, difficult, solid, dark)
4
cabalistic(adjective, obscure, solid, strange, odd)
4
esoteric(adjective, obscure, difficult, strange, deep)
3
enigmatical(adjective, solid, strange, dense)
2
invisible(obscure, dark, superior, mysterious)
2
numinous(obscure, dark, superior, mysterious)
2
secret(adjective, obscure, dark, superior, strange)
2
unknown(obscure, dark, superior, strange, mysterious)
1
abnormal(obscure, dark, superior, mysterious)
1
anagogic(spiritual, mystical)
1
celestial(obscure, dark, superior, mysterious)
1
fabulous(obscure, dark, superior, mysterious)
1
fairy(obscure, dark, superior, mysterious)
1
ghostly(obscure, dark, superior, mysterious)
11 years ago|15k views|share |citing 
APASmart Define. (2015). impenetrable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/impenetrable/thesaurus/synonyms
ChicagoSmart Define. 2015. "impenetrable thesaurus" https://smartdefine.org/impenetrable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, impenetrable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/impenetrable/thesaurus/synonyms>.
MLASmart Define. "impenetrable thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/impenetrable/thesaurus/synonyms>