Nubilous
Obtuse and nubilous are semantically related. in hard to understand topic. In some cases you can use "Obtuse" instead an adjective "Nubilous".
Cite this Source
Obtuse and Nubilous. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/nubilous/obtuse
Nubilous & Obtuse. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/nubilous/obtuse>.
Obtuse or Nubilous. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/nubilous/obtuse.
Google Ngram Viewer shows how "nubilous" and "obtuse" have occurred on timeline