Hermetic
Hermetic adjective - Difficult for one of ordinary knowledge or intelligence to understand.
Shadowy and hermetic are semantically related. In some cases you can use "Shadowy" instead an adjective "Hermetic".
Nearby Word: hermetically
Cite this Source
Shadowy and Hermetic. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/hermetic/shadowy
Hermetic & Shadowy. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/hermetic/shadowy>.
Shadowy or Hermetic. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/hermetic/shadowy.
Google Ngram Viewer shows how "hermetic" and "shadowy" have occurred on timeline