noun, plural e·phem·er·al·i·ties for 2.
Examples from the Web for ephemerality
What would the various social-media sites look like if ephemerality was the default and permanence, at most, an option?Snapchat: Naughty, Goofy, Ethereal, Permanent or All of the Above?|Winston Ross|September 21, 2013|DAILY BEAST
Perhaps it is the ephemerality of the Internet that I find intriguing—maybe the notebooking done there is closer to performance.
I was distressed with a sense of ephemerality, of pale, erratic fragility.The White Peacock|D. H. (David Herbert) Lawrence
Sad will it be when the genius of ephemerality has invaded all departments of human actions and human motives!