obliv·i·on 
/əˈblɪvijən/ noun
/əˈblɪvijən/ noun [noncount] 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
▪ The little village was bulldozed into oblivion to make way for the airport.
▪ 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.
▪ After being awake for three days straight, he longed for the oblivion of sleep. ▪ She drank herself into oblivion.
▪ The little village was bulldozed into oblivion to make way for the airport.
