Rare
Rare adjective - Being out of the ordinary.
Unknowable and rare are semantically related In some cases you can use "Unknowable" instead an adjective "Rare".
Unknowable
Unknowable adjective - Not knowable.
Rare and unknowable are semantically related in belief topic. Sometimes you can use "Rare" instead an adjective "Unknowable", if it concerns topics such as supernatural, mysterious, mind-boggling.
Mutual synonyms
Cite this Source
Unknowable and Rare. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/rare/unknowable
Rare & Unknowable. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/rare/unknowable>.
Unknowable or Rare. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/rare/unknowable.
Google Ngram Viewer shows how "rare" and "unknowable" have occurred on timeline