Synonyms|713Antonyms|152|Broader|9Narrower|8Related|663

65 entries under obscure topic. ×

4
cabalistic(adjective, solid, strange, odd)
4
difficult(adjective, dark, strange, odd)
4
esoteric(adjective, difficult, strange, deep)
4
indecipherable(adjective, deep, mysterious, incoherent)
4
uncomprehensible(adjective, knowledge, dark, superior)
2
invisible(dark, superior, mysterious, supernatural)
2
numinous(dark, superior, mysterious, supernatural)
2
secret(adjective, dark, superior, strange)
2
supernatural(adjective, dark, mysterious, spiritual)
2
unknown(dark, superior, strange, mysterious)
1
abnormal(dark, superior, mysterious, supernatural)
1
celestial(dark, superior, mysterious, supernatural)
1
concealed(dark, superior, strange, mysterious)
1
fabulous(dark, superior, mysterious, supernatural)
1
fairy(dark, superior, mysterious, supernatural)
1
ghostly(dark, superior, mysterious, supernatural)
1
heavenly(dark, superior, mysterious, supernatural)
1
legendary(dark, superior, mysterious, supernatural)
1
metaphysical(dark, mysterious, supernatural, heavenly)
1
miraculous(dark, superior, mysterious, supernatural)
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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>