Opaques
Unknowables and opaques are semantically related. In some cases you can replace term "Unknowables" with "Opaques", this words are similar.
Unknowables
Opaques and unknowables are semantically related. You can use "Opaques" instead an adjective "Unknowables".
Cite this Source
Unknowables and Opaques. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/opaques/unknowables
Opaques & Unknowables. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/opaques/unknowables>.
Unknowables or Opaques. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/opaques/unknowables.
Google Ngram Viewer shows how "opaques" and "unknowables" have occurred on timeline