ephemeral
/ɪˈfɛmərəl/
adjective
- Lasting for only a very short time; quickly fading or disappearing.
- We enjoyed the ephemeral pleasure of a cool breeze on a hot afternoon.
- Fame in the internet age can be ephemeral, gone in a matter of days.
- The beauty of cherry blossoms is ephemeral, lasting only a week or two.