Synonyms|105Antonyms|21|Broader|1Narrower|9Related|33

14 entries under impenetrable topic. ×

1
Greek(incoherent, unfathomable, incomprehensible, opaque)
1
beats me(expression, unfathomable, opaque, unintelligible)
1
beyond comprehension(expression, unfathomable, opaque, unintelligible)
1
clear as mud(expression, unfathomable, opaque, unintelligible)
1
cryptic(unfathomable, opaque, unintelligible, puzzling)
1
inconceivable(unfathomable, opaque, unintelligible, puzzling)
1
mystifying(unfathomable, opaque, unintelligible, puzzling)
1
not understandable(expression, incoherent, unfathomable, incomprehensible)
1
opaque(incoherent, unfathomable, incomprehensible, unintelligible)
1
perplexing(unfathomable, opaque, unintelligible, puzzling)
1
puzzling(unfathomable, opaque, unintelligible)
1
unclear(incoherent, unfathomable, incomprehensible, opaque)
1
unimaginable(adjective, unfathomable, opaque, unintelligible)
1
unknowable(incoherent, unfathomable, incomprehensible, opaque)
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APASmart Define. (2015). fathomless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fathomless/thesaurus/synonyms
ChicagoSmart Define. 2015. "fathomless thesaurus" https://smartdefine.org/fathomless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, fathomless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fathomless/thesaurus/synonyms>.
MLASmart Define. "fathomless thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/fathomless/thesaurus/synonyms>