Ephemeral Vs. Stability

-Ephemeral things are transitory, existing only briefly. The Term is typically used to describe things found in nature, but not limited to that. It come from the Greek work ephemeros which literally means "lasting only one day". Some examples of things that could be considered ephemeral include lakes and streams that exist just shortly after snow melt off, magazines, clothing styles, ice sculptures, sand sculptures.. etc.

Basically the opposite of things that are considered to be stable.