Synonyms|540Antonyms|121|Broader|7Narrower|4Related|1.1k

134 entries under obscure topic. ×

3
unknown(dark, strange, deep, secret)
2
challenging(adjective, difficult, inaccessible)
2
close(dark, secret, unknown, hidden)
2
clouded(dark, secret, unknown, hidden)
2
covered(secret, unknown, hidden, concealed)
2
eclipsed(dark, secret, unknown, hidden)
2
entangled(adjective, hard, fancy, difficult)
2
erudite(deep, thoughtful, precise, knowledgeable)
2
hard(adjective, fancy, difficult, heavy)
2
labyrinthine(adjective, hard, fancy, difficult)
2
latent(dark, secret, unknown, hidden)
2
learned(deep, thoughtful, precise, knowledgeable)
2
muddy(adjective, difficult, uncertain, vague)
2
private(adjective, secret, unknown, hidden)
2
scholarly(complex, deep, thoughtful, modern)
2
secluded(dark, secret, unknown, hidden)
2
sequestered(dark, secret, unknown, hidden)
2
tangled(adjective, hard, difficult, complex)
2
under cover(expression, dark, unseen)
2
underground(secret, unknown, hidden, concealed)
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APASmart Define. (2015). abstruse thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms
ChicagoSmart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, abstruse thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>.
MLASmart Define. "abstruse thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms>