Pertaining to or characteristic of a different sphere of existence; extramundane; unearthly; belonging or relating to the future life.
The Century Dictionary (Public Domain)
Use "other-world" in a sentence
"Everyone is watching, everyone is talking about it, but if the markets are a measure of the real world, this most important and urgent of matters seems to have become part of the entertainment-cable-Internet-popular culture other-world that consumes our lives, but isn't really part of our lives."
"Then why could not these other-world memories of the boy resurrect?"
"But first, I must tell how as a boy I had had these other-world memories."