1
hypnotic(adjective, psychical)
1
hysterical(adjective, psychical)
1
ideal(abstract, theoretical, abstruse, philosophical)
1
immaculate(perfect, wonderful, marvelous, godlike)
1
immaterial(abstract, theoretical, abstruse, philosophical)
1
impenetrable(strange, supernatural, spiritual, paranormal, mystic)
1
imperceivable(obscure, dark, secret, unknown, hidden)
1
in the dark(expression, idiom, obscure, dark, unknown)
1
incorporeal(abstract, theoretical, abstruse, philosophical)
1
indefinable
1
indefinite
1
indiscernible(obscure, dark, secret, unknown, hidden)
1
indistinct
1
inextricable
1
insoluble(strange, unknown, curious, concealed, inexplicable)
1
insubstantial(abstract, theoretical, abstruse, philosophical)
1
intangible(abstract, theoretical, abstruse, philosophical)
1
intellection
1
intellectual(abstract, theoretical, abstruse, philosophical)
1
intricate(adjective, hard, evil, delicate, loose)
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APASmart Define. (2015). mystical thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/mystical/thesaurus/synonyms
ChicagoSmart Define. 2015. "mystical thesaurus" https://smartdefine.org/mystical/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, mystical thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/mystical/thesaurus/synonyms>.
MLASmart Define. "mystical thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/mystical/thesaurus/synonyms>