21 entries under obscure topic. ×

20
incomprehensible(adjective, solid, dark, strange)
19
unexplainable(adjective, strange, explain, explanation)
17
unaccountable(adjective, solid, extraordinary, superior)
15
mysterious(adjective, hard, dark, strange)
12
unfathomable(adjective, hard, difficult, solid)
8
enigmatic(adjective, hard, rough, solid)
7
mystifying(adjective, hard, delicate, strange)
7
baffling(adjective, hard, delicate, solid)
7
mystic(adjective, solid, strange, mysterious)
6
cryptic(adjective, dark, strange, uncertain)
6
unsolvable(adjective, explanation, mysterious, unfathomable)
5
impenetrable(adjective, solid, dark, strange)
5
indecipherable(adjective, dark, uncertain, deep)
3
arcane(adjective, solid, strange, doubtful)
3
difficult(adjective, hard, dark, strange)
3
hidden(adjective, hard, solid, strange)
2
cabalistic(adjective, solid, dark, strange)
2
inextricable(adjective, mysterious, inscrutable)
1
secret(adjective, dark, strange, uncertain)
1
sphinxlike(adjective, dark, strange, uncertain)
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APASmart Define. (2015). inexplicable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inexplicable/thesaurus/synonyms
ChicagoSmart Define. 2015. "inexplicable thesaurus" https://smartdefine.org/inexplicable/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, inexplicable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inexplicable/thesaurus/synonyms>.
MLASmart Define. "inexplicable thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/inexplicable/thesaurus/synonyms>