Oblivion
Oblivion noun - A state of being disregardful or unconscious of one's surroundings, concerns, or obligations.
Unknown and oblivion are semantically related. In some cases you can use "Unknown" instead a noun "Oblivion".
Nearby Words: oblivious, obliviously
Unknown
Unknown noun - An unknown and unexplored region.
Oblivion and unknown are semantically related. Sometimes you can use "Oblivion" instead a noun "Unknown".
Nearby Words: unknowable, unknowing
Both words in one sentence
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For reasons unknown, the last iteration wears clown makeup (including big red nose) and has a tendency to stunlock and kamikaze you into oblivion.
Source: Eenie, Meenie, Miny Moai - The Legend of Zelda: The Wind Waker: Ganondorf is finally and utterly defeated, but the Master Sword and the ancient Kindgom of Hyrule fall into permanent oblivion, despite it originally being one of your (unknown) goals to revive it.
Source: Bittersweet Ending / Video Games -
After Ookubo went and wrote Soul Eater, a much longer and much more successful series, this one fell into oblivion and is almost unknown even in Japan, but you could already find a few of the recurring graphic motifs of Soul Eater (like the skull).
Source: Manga / B.Ichi
Cite this Source
Unknown and Oblivion. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/oblivion/unknown
Oblivion & Unknown. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/oblivion/unknown>.
Unknown or Oblivion. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/oblivion/unknown.
Google Ngram Viewer shows how "oblivion" and "unknown" have occurred on timeline