Abstruse
Abstruse adjective - Difficult for one of ordinary knowledge or intelligence to understand.
Unknown and abstruse are semantically related. In some cases you can use "Unknown" instead an adjective "Abstruse".
Nearby Word: abstrusity
Unknown
Unknown adjective - Happening or existing without one's knowledge.
Abstruse and unknown are semantically related. Sometimes you can use "Abstruse" instead an adjective "Unknown".
Nearby Words: unknowable, unknowing
Mutual synonyms
Cite this Source
Unknown and Abstruse. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/abstruse/unknown
Abstruse & Unknown. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/abstruse/unknown>.
Unknown or Abstruse. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/abstruse/unknown.
Google Ngram Viewer shows how "abstruse" and "unknown" have occurred on timeline