fleetingness

noun

fleetingness

noun

Etymology From fleeting + -ness.

1

The quality of being fleeting.

But the perpetual mutability and fleetingness of those immediate objects of sight render them incapable of being managed after the manner of geometrical figures […]1709, George Berkeley, An Essay Towards a New Theory of Vision, §156:

Synonyms: ephemerality, briefness, transiency

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.