oblivion

The state of forgetting completely, of being oblivious, unconscious, unaware, as when sleeping, drunk, or dead.

He regularly drank himself into oblivion.

Only the oblivion of sleep can heal the greatest traumas.

The state of being completely forgotten, of being reduced to a state of non-existence, extinction, or nothingness, including through war and destruction. (Figuratively) for an area like hell, a wasteland.

Due to modern technology, many more people and much more information will not slip into oblivion, contrary to what happened throughout history until now.

They tried to bomb them into oblivion.

A form of purgatory.

Amnesty.

To consign to oblivion; to efface utterly.