ephemeral

noun

1. Something which lasts for a short period of time.

   Synonyms ephemeron

Related synonyms ephemeron

adjective

1. Lasting for a short period of time.

   Synonyms evanescent, fleeting, momentary, short, short-lived, temporary, transitory, volatile

   Antonyms eternal, everlasting, permanent, timeless

2. Existing for only one day, as with some flowers, insects, and diseases.

3. (of a body of water) Usually dry, but filling with water for brief periods during and after precipitation.

Related synonyms evanescent, fleeting, momentary, short, short-lived, temporary, transitory, volatile

Related antonyms eternal, everlasting, permanent, timeless