| ɪˈfɛm(ə)r(ə)l |

(a) lasting for a very short time.

Fashions are ephemeral: new ones regularly drive out the old.

works of more than ephemeral interest.

Your cloud shell session will be ephemeral so no files or system changes will persist beyond your current session.

(chiefly of plants) having a very short life cycle: chickweed is an ephemeral weed, producing several generations in one season.

(n) an ephemeral plant: ephemerals avoid the periods of drought as seeds.

Derivatives: ephemerality (n), ephemarally (adv), ephemraless (n)