55 entries under obscure topic. ×

10
enigmatic(adjective, hard, solid, uncertain)
10
puzzling(adjective, hard, strange, uncertain)
7
ambiguous(adjective, uncertain, deep, vague)
5
cryptic(adjective, strange, uncertain, vague)
4
equivocal(strange, uncertain, vague, unclear)
4
mysterious(adjective, hard, delicate, solid)
3
abstruse(noun, hard, strange, uncertain)
3
indeterminate(adjective, uncertain, vague, unclear)
3
mystic(adjective, solid, secret, supernatural)
2
arcane(adjective, solid, strange, deep)
2
unintelligible(adjective, hard, delicate, solid)
1
backdoor(deep, unknown, clandestine, underground)
1
camouflaged(unknown, clandestine, underground, undisclosed)
1
clear as dishwater(expression, uncertain, vague, unclear)
1
close(solid, unknown, dense, underground)
1
clouded(unknown, indefinite, equivocal, clandestine)
1
conspiratorial(unknown, clandestine, underground, undisclosed)
1
covered(unknown, clandestine, underground, undisclosed)
1
deep(hard, delicate, complex, unknown)
1
esoteric(hard, delicate, strange, complex)
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APASmart Define. (2015). enigmatical thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/enigmatical/thesaurus/synonyms
ChicagoSmart Define. 2015. "enigmatical thesaurus" https://smartdefine.org/enigmatical/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, enigmatical thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/enigmatical/thesaurus/synonyms>.
MLASmart Define. "enigmatical thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/enigmatical/thesaurus/synonyms>