51 entries under tricky topic. ×

34
obscure(adjective, dull, clear, hard, weak)
13
mysterious(adjective, hard, complex, doubtful, vague)
12
dark(adjective, hard, obscure, rough, gloomy)
12
enigmatic(adjective, hard, obscure, rough, difficult)
9
unintelligible(adjective, hard, obscure, rough, difficult)
7
baffling(adjective, hard, obscure, difficult, loose)
6
perplexing(adjective, hard, obscure, rough, difficult)
4
deceptive(adjective, false, deceitful, equivocal)
4
evasive(adjective, obscure, uncertain, doubtful, vague)
4
loose(adjective, hard, rough, delicate, complex)
3
subtle(hard, delicate, complex, complicated)
3
unfathomable(adjective, hard, obscure, difficult, uncertain)
2
abstruse(adjective, hard, obscure, difficult, loose)
2
bewildering(hard, complicated, indistinct, indistinguishable)
2
hidden(adjective, hard, obscure, delicate, loose)
1
deep(hard, weak, delicate, complex, pale)
1
delicate(hard, weak, complex, pale)
1
difficult(adjective, hard, obscure, uncertain, complex)
1
esoteric(hard, delicate, complex, complicated)
1
inexplicable(hard, delicate, complex, complicated)
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APASmart Define. (2015). unclear thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unclear/thesaurus/synonyms
ChicagoSmart Define. 2015. "unclear thesaurus" https://smartdefine.org/unclear/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unclear thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unclear/thesaurus/synonyms>.
MLASmart Define. "unclear thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/unclear/thesaurus/synonyms>