Annihilation
Annihilation noun - The state or fact of being rendered nonexistent, physically unsound, or useless.
Unknown and annihilation are semantically related. In some cases you can use "Unknown" instead a noun "Annihilation".
Unknown
Unknown noun - An unknown and unexplored region.
Annihilation and unknown are semantically related. Sometimes you can use "Annihilation" instead a noun "Unknown".
Nearby Words: unknowable, unknowing
Both words in one sentence
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The fact that he saved the city from wildfire annihilation is unknown to everyone in Westeros save Brienne and the reader.
Source: The Kingslayer
Cite this Source
Unknown and Annihilation. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/annihilation/unknown
Annihilation & Unknown. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/annihilation/unknown>.
Unknown or Annihilation. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/annihilation/unknown.
Google Ngram Viewer shows how "annihilation" and "unknown" have occurred on timeline