Hidden and Not known

Related terms

Hidden adjective - Screened or sequestered from view.

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Not known and hidden are semantically related. In some cases you can use "Not known" instead an adjective "Hidden".

Definitions of Hidden not found.

Hidden and not known are semantically related. Sometimes you can use "Hidden" instead an adjective phrase "Not known".

Something of a subversion, since the technology isn't too advanced or hidden, it is simply not known to the current generation of astronauts due to its extreme obsolescence.

Source: Black Box

Cite this Source

Not known and Hidden. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/hidden/not_known

Hidden & Not known. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/hidden/not_known>.

Not known or Hidden. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/hidden/not_known.

Google Ngram Viewer shows how "hidden" and "not known" have occurred on timeline