noun
oblivion
uh-BLIV-ee-uhn/əˈblɪviən/
The state of being forgotten or unknown.
The forgotten invention slips into oblivion.

Etymology
Latin oblivio covered both forgetting and being forgotten. The English sense centers on absence from memory or awareness, whether something has been forgotten or a person is completely unconscious.
In context
could not bear to live in poverty and Oblivion in the same country where he had formerly been distinguished for his Rank and magnificence
More examples
- The book rescued her name from oblivion.
- His work escaped oblivion.
- The old custom faded into oblivion.
Forms
oblivion
Similar words
- obscurity
- Being little known rather than entirely forgotten.
- forgetfulness
- A person's failure to remember rather than the forgotten thing's state.