38 entries under obscure topic. ×

25
unintelligible(adjective, knowledge, difficult, solid)
23
unfathomable(adjective, hard, knowledge, difficult)
23
puzzling(adjective, dark, strange, mysterious)
20
mysterious(adjective, dark, strange, secret)
18
enigmatic(adjective, difficult, solid, strange)
18
inexplicable(adjective, solid, dark, strange)
18
impenetrable(adjective, knowledge, solid, dark)
16
cryptic(adjective, difficult, dark, strange)
15
dark(adjective, mysterious, feature, hidden)
15
perplexing(adjective, difficult, dark, strange)
13
abstruse(adjective, difficult, strange, uncertain)
13
baffling(adjective, difficult, solid, strange)
13
recondite(adjective, dark, strange, uncertain)
12
arcane(adjective, difficult, solid, strange)
11
unclear(adjective, difficult, uncertain, doubtful)
9
unaccountable(adjective, solid, strange, doubtful)
7
ambiguous(adjective, dark, uncertain, doubtful)
6
secret(adjective, dark, strange, uncertain)
6
unexplainable(adjective, strange, odd, mysterious)
6
unknowable(adjective, solid, dark, strange)
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APASmart Define. (2016). incomprehensible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/incomprehensible/thesaurus/synonyms
ChicagoSmart Define. 2016. "incomprehensible thesaurus" https://smartdefine.org/incomprehensible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, incomprehensible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/incomprehensible/thesaurus/synonyms>.
MLASmart Define. "incomprehensible thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/incomprehensible/thesaurus/synonyms>