Lasting or existing only for a short time
The civic reaction was an example of the ephemeral nature of the public's interest.
New words are constantly being coined, some will prove ephemeral, others are here to stay.
Concentrate on remembering the ephemeral moments which will be the most precious 20 years from now.
He led an ephemeral electronic existence.
Good and evil, right and wrong, become infinitesimal, ephemeral matters.