adjective. Lasting for a markedly brief time.

adjective. Having a short lifespan or a short annual period of aboveground growth. Used especially of plants.

noun. Something, especially a plant, that is ephemeral.

In zoology, lasting but one day; ephemeric; ephemerous.

Hence Existing or continuing for a very short time only; short-lived; transitory.

Also, rarely, ephemeric.

Synonyms Transient, fleeting, evanescent.

noun. Anything which lasts or lives but for a day or for a very short time, as certain insects.

noun. Anything lasting but a day, or a brief time; an ephemeral plant, insect, etc.

adjective. Beginning and ending in a day; existing only, or no longer than, a day; diurnal.

adjective. Short-lived; existing or continuing for a short time only.

adjective. one of a group of neuropterous insects, belonging to the genus Ephemera and many allied genera, which live in the adult or winged state only for a short time. The larvæ are aquatic; -- called also day fly and May fly.

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

adjective. Lasting for a short period of time.

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

adjective. Usually dry, but filling with water for brief periods during and after precipitation.

noun. anything short-lived, as an insect that lives only for a day in its winged form

adjective. lasting a very short time

"When your entire brand is built on the temporary, fleeting, and inevitably obsolete currency of youthful physical beauty, sexual allure, and cultural status, the word "ephemeral" comes to mind."

eternal  lasting  long-lived  

impermanent  temporary  

insect  

femoral  

delusive  earthly  fickle  fragmentary  frail  

brief  brittle  capricious  changeable  corruptible