Unknown and Unascertainable

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Unknown adjective - Happening or existing without one's knowledge.

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Unascertainable and unknown are semantically related. In some cases you can use "Unascertainable" instead an adjective "Unknown".

Nearby Words: unknowable, unknowing

Unascertainable adjective - Not able to be ascertained; resisting discovery.

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Unknown and unascertainable are semantically related. You can use "Unknown" instead an adjective "Unascertainable".

Cite this Source

Unascertainable and Unknown. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/unknown/unascertainable

Unknown & Unascertainable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/unknown/unascertainable>.

Unascertainable or Unknown. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/unknown/unascertainable.

Google Ngram Viewer shows how "unknown" and "unascertainable" have occurred on timeline