ephemerality

/ɪˌfɛməˈræləti/
noun
  1. The quality or state of lasting for only a very short time; the fact of being temporary or fleeting.
    • The artist's work explores the ephemerality of human life.
    • The ephemerality of youth is a common theme in poetry.
    • Social media posts are designed with ephemerality in mind, disappearing after 24 hours.
Antonyms