ephemeral

American  

[ih-fem-er-uhl] / ɪˈfɛm ər əl /

adjective

1. lasting a very short time; short-lived; transitory.

   The poem celebrates the ephemeral joys of childhood.

   Synonyms:

   brief, momentary, transient, evanescent, fleeting

   Antonyms:

   permanent

2. (of flowers or insects) lasting only a few days or less.

   Lily of the valley is an ephemeral flower.

3. being of temporary value or passing interest.

   She had a scrapbook full of ephemeral news clippings about forgotten events.

4. Computers.

   1. being or relating to messages, images, or other data that are written to temporary or virtual storage only, and are therefore liable to change or be lost unless copied to permanent storage immediately or within a very short time.

      Snapchat is an ephemeral messaging app.

   2. being or relating to a temporary storage medium, especially a virtual one.

      In case of a hardware failure this data will be lost, as it is only stored locally on an ephemeral drive.

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noun

1. anything short-lived, such as certain flowers and insects.

ephemeral British  

/ ɪˈfɛmərəl /

adjective

1. lasting for only a short time; transitory; short-lived

   ephemeral pleasure

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noun

1. a short-lived organism, such as the mayfly

2. a plant that completes its life cycle in less than one year, usually less than six months

Other Word Forms

• ephemerality noun
• ephemerally adverb
• ephemeralness noun
• nonephemeral adjective
• nonephemerally adverb
• unephemeral adjective
• unephemerally adverb

Etymology

Origin of ephemeral

First recorded in 1570–80; from Greek ephḗmer(os) “short-lived, lasting a day” (from ep- ep- + hēmér(a) “day” + -os, adjective suffix) + -al ¹

Example Sentences

As the already ephemeral freeze-thaw cycle is compressed or diminished, it might be possible, in Canada, to extend the country’s sugar-maple forests by planting trees north of the existing ones.

From The Wall Street Journal

"And yet they don't necessarily form a crater, or they form ephemeral surface disturbances, but they're not the classic major craters that come from direct impacts."

From Science Daily

We’ll always have “Fogata,” though — a song about holding on to the precious moments of bliss when confronted with the ephemeral nature of... well, everything.

From Los Angeles Times

“Now You See Me: Now You Don’t” is the kind of lightweight, harmless and ephemeral entertainment that allows us to be escape artists from reality for a minute, so go ahead and indulge.

From Los Angeles Times

Over tattered drum and bass patterns, retro-futuristic crescendos and ephemeral melodies, Twigs attempts to bottle the way dance music makes her feel.

From Los Angeles Times

Related Words

• fleeting
• short-lived
• transitory