ephemeral
Definitions
Lasting for a very short time.
Short-lived; transitory or fleeting.
Examples
The beauty of a sunset is truly ephemeral, lasting only a few fleeting moments before the sky turns dark.
Fashion trends are often ephemeral, disappearing as quickly as they arrive in the public consciousness.
He realized that fame is an ephemeral reward that rarely provides lasting satisfaction.
Synonyms
fleeting transient short-lived momentary evanescent temporary fugacious
Antonyms
permanent enduring everlasting eternal perpetual lasting immortal