Synonyms|21Antonyms|0|Broader|0Narrower|0Related|20
1
inexplicable
0
admitting research(expression, idiom)
0
arcane
0
cryptic
0
deep
0
fathomless
0
hidden
0
impenetrable
0
incomprehensible
0
inconceivable
0
inscrutable
0
intangible
0
mystery
0
mystic
0
mystical
0
obscure
0
occult
0
recondite
0
secret
0
unfathomable
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ChicagoSmart Define. 2013. "investigable thesaurus" https://smartdefine.org/investigable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, investigable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/investigable/thesaurus/synonyms>.
MLASmart Define. "investigable thesaurus" 19 May 2013. Web. 20 September 2026. <https://smartdefine.org/investigable/thesaurus/synonyms>