Synonyms|540Antonyms|121|Broader|7Narrower|4Related|1.1k
1
in purdah
1
in the dark(expression, idiom, obscure, dark, unknown)
1
in the know(expression, idiom, sound, knowledgeable, cultured)
1
in the wings(expression, idiom)
1
inaccessible
1
incommunicado
1
incorporeal(abstract, insubstantial, theoretical, imperceptible, philosophical)
1
indecipherable
1
indiscernible(obscure, dark, secret, unknown, hidden)
1
ingenious
1
insoluble(strange, unknown, curious, concealed, inexplicable)
1
insubstantial(abstract, theoretical, imperceptible, philosophical, incorporeal)
1
intangible(adjective, intellectual, abstract, indefinite, insubstantial)
1
intellectual(sound, deep, thoughtful, knowledgeable, abstract)
1
interlaced(adjective, hard, fancy, difficult, complex)
1
invisible(obscure, dark, deep, mysterious, unknown)
1
jawbreaking
1
jesuitic(abstract, theoretical, philosophical)
1
jumbled(adjective, obscure, difficult, sophisticated, involved)
1
kabbalistic
<1…678910>
For more, visit Abstruse on Power Thesaurus
11 years ago|17k views|share |citing 
APASmart Define. (2015). abstruse thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/abstruse/thesaurus/synonyms
ChicagoSmart Define. 2015. "abstruse thesaurus" https://smartdefine.org/abstruse/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, abstruse thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/abstruse/thesaurus/synonyms>.
MLASmart Define. "abstruse thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/abstruse/thesaurus/synonyms>