Learner's definition of OBLIVION
1 : the state of something that is not remembered, used, or thought about any more
The technology is destined/headed for oblivion.
The names of the people who lived here long ago have faded/drifted into oblivion.
His theories have faded into scientific oblivion.
Her work was rescued from oblivion when it was rediscovered in the early 1900s.
2 : the state of being unconscious or unaware : the state of not knowing what is going on around you
After being awake for three days straight, he longed for the oblivion of sleep.
She drank herself into oblivion.
3 : the state of being destroyed