Synonyms|37Antonyms|1|Broader|0Narrower|0Related|0

26 entries under impenetrable topic. ×

1
Delphic(adjective, unfathomable, unintelligible)
1
Greek(adjective, incoherent, unfathomable, incomprehensible)
1
baffling(adjective, unfathomable, unintelligible)
1
beats me(expression, unfathomable, opaque, unintelligible)
1
beyond comprehension(expression, adjective, unfathomable, opaque)
1
clear as mud(expression, adjective, unfathomable, opaque)
1
cryptic(adjective, unfathomable, opaque, unintelligible)
1
enigmatic(adjective, unfathomable, unintelligible)
1
fathomless(adjective, incoherent, unfathomable, incomprehensible)
1
incognizable(adjective, incoherent, unfathomable, incomprehensible)
1
incomprehensible(singular, uncommon, incoherent, unfathomable)
1
inconceivable(adjective, unfathomable, opaque, unintelligible)
1
inscrutable(adjective, unfathomable, unintelligible)
1
mysterious(adjective, unfathomable, unintelligible)
1
mystifying(adjective, unfathomable, opaque, unintelligible)
1
obscure(adjective, incoherent, unfathomable, incomprehensible)
1
opaque(adjective, incoherent, unfathomable, incomprehensible)
1
perplexing(adjective, unfathomable, opaque, unintelligible)
1
puzzling(adjective, unfathomable, opaque, unintelligible)
1
sibylline(adjective, unfathomable, unintelligible)
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APASmart Define. (2011). not understandable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/not_understandable/thesaurus/synonyms
ChicagoSmart Define. 2011. "not understandable thesaurus" https://smartdefine.org/not_understandable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2011, not understandable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/not_understandable/thesaurus/synonyms>.
MLASmart Define. "not understandable thesaurus" 24 May 2011. Web. 26 September 2026. <https://smartdefine.org/not_understandable/thesaurus/synonyms>