oblivion

/əˈblɪviən/
noun
  1. The state of being completely forgotten or no longer remembered by anyone.
    • Many old songs have faded into oblivion.
    • The ancient civilization was lost to oblivion for centuries.
    • He feared that his work would sink into oblivion after his death.
  2. The state of being unconscious or unaware of what is happening around you.
    • The patient slipped into oblivion after the anesthesia took effect.
    • He lay in a state of oblivion, not hearing the noise outside.
    • She drank herself into oblivion to escape her problems.
  3. The state of being completely destroyed or wiped out.
    • The entire village was bombed into oblivion during the war.
    • The forest fire threatened to burn the town into oblivion.
    • The bomb blast reduced the building to oblivion.