49 entries under mysterious topic. ×

1
fabulous(obscure, dark, superior, supernatural)
1
fairy(obscure, dark, superior, supernatural)
1
ghostly(obscure, dark, superior, supernatural)
1
heavenly(obscure, dark, superior, supernatural)
1
legendary(obscure, dark, superior, supernatural)
1
metaphysical(obscure, dark, supernatural, heavenly)
1
miraculous(obscure, dark, superior, supernatural)
1
mysterial(adjective, secret, supernatural, hidden)
1
mythical(obscure, dark, superior, supernatural)
1
mythological(obscure, dark, superior, supernatural)
1
paranormal(obscure, dark, supernatural, heavenly)
1
phantom(obscure, dark, superior, supernatural)
1
phenomenal(obscure, dark, superior, supernatural)
1
preternatural(obscure, dark, supernatural, heavenly)
1
psychic(obscure, dark, supernatural, heavenly)
1
rare(obscure, dark, superior, supernatural)
1
spectral(obscure, dark, superior, supernatural)
1
sphinxlike(adjective, obscure, dark, strange, odd)
1
superhuman(obscure, dark, superior, supernatural)
1
superior(obscure, dark, supernatural, heavenly)
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APASmart Define. (2015). impenetrable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/impenetrable/thesaurus/synonyms
ChicagoSmart Define. 2015. "impenetrable thesaurus" https://smartdefine.org/impenetrable/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, impenetrable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/impenetrable/thesaurus/synonyms>.
MLASmart Define. "impenetrable thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/impenetrable/thesaurus/synonyms>