66 entries under mysterious topic. ×

31
perplexing(adjective, hard, fancy, obscure, rough)
28
enigmatic(adjective, hard, knowledge, evil, obscure)
24
baffling(adjective, difficult, strange, complicated)
24
mystifying(adjective, hard, knowledge, evil, obscure)
17
abstruse(adjective, hard, fancy, evil, obscure)
17
ambiguous(adjective, obscure, dark, uncertain, vague)
17
incomprehensible(adjective, obscure, dark, strange)
15
cryptic(adjective, knowledge, evil, obscure, difficult)
11
intricate(adjective, hard, fancy, evil, obscure)
10
unfathomable(adjective, obscure, dark, strange, sophisticated)
9
equivocal(adjective, obscure, dark, uncertain, doubtful)
9
knotty(adjective, hard, fancy, evil, obscure)
8
arcane(adjective, knowledge, evil, obscure, dark)
8
complicated(adjective, hard, evil, obscure, difficult)
8
dark(adjective, hard, evil, obscure, rough)
8
inscrutable(adjective, obscure, dark, strange, sophisticated)
8
recondite(adjective, hard, fancy, evil, obscure)
7
inexplicable(adjective, hard, dark, strange, uncertain)
6
occult(adjective, knowledge, evil, obscure, dark)
5
indecipherable(adjective, dark, uncertain, unintelligibility)
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APASmart Define. (2015). puzzling thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/puzzling/thesaurus/synonyms
ChicagoSmart Define. 2015. "puzzling thesaurus" https://smartdefine.org/puzzling/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, puzzling thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/puzzling/thesaurus/synonyms>.
MLASmart Define. "puzzling thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/puzzling/thesaurus/synonyms>