Definition of "ephemerality"
noun
countable and uncountable, plural ephemeralities
(countable) Something that is ephemeral.
Quotations
So, too, the multiplication of bathrooms and the over-expenditure on broadly paved motor roads, and above all, the massive collective concentration on glib ephemeralities of all kinds, performed with supreme technical audacity.
1961, Lewis Mumford, The City in History, Harcourt, Brace & World, page 242