The temporal mode of existence between time and eternity, said to be experienced by angels, saints, and celestial bodies (which medieval astronomy believed to be unchanging.
A mythical time in the infinite future that will never come.
An extremely long time.
Permanent, lasting; constant, perpetual.
We had to wait forever to get inside.
For all time, for all eternity; for a lifetime; for an infinite amount of time.
For a very long time, a seeming eternity.
Constantly or frequently.