64 entries under tricky topic. ×

5
doubtful(adjective, uncertain, vague, dubious, mysterious)
5
hidden(adjective, cover, hard, evil, obscure)
5
knotty(adjective, hard, evil, obscure, difficult)
5
unintelligible(adjective, hard, obscure, rough, difficult)
4
difficult(adjective, hard, obscure, dark, strange)
4
mystical(adjective, hard, knowledge, evil, obscure)
3
complicated(adjective, hard, evil, obscure, difficult)
3
dubious(uncertain, doubtful, vague, unclear)
3
hard(obscure, difficult, solid, unclear, dense)
3
involved(adjective, hard, obscure, sophisticated)
3
questionable(uncertain, doubtful, vague, dubious, unclear)
2
labyrinthine(adjective, hard, obscure, sophisticated)
2
subtle(adjective, hard, sharp, obscure, exact)
2
tangled(adjective, hard, obscure, sophisticated)
2
thorny(hard, complicated)
1
arguable(uncertain, doubtful, dubious, sticky)
1
debatable(uncertain, doubtful, dubious, sticky)
1
disputable(uncertain, doubtful, dubious, sticky)
1
dubitable(obscure, uncertain, doubtful, dubious)
1
entangled(hard, obscure, sophisticated, complicated)
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APASmart Define. (2016). enigmatic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/enigmatic/thesaurus/synonyms
ChicagoSmart Define. 2016. "enigmatic thesaurus" https://smartdefine.org/enigmatic/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, enigmatic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/enigmatic/thesaurus/synonyms>.
MLASmart Define. "enigmatic thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/enigmatic/thesaurus/synonyms>