Time as vicissitude; transitoriness; change.(noun)
The Century Dictionary (Public Domain)
Use "whileness" in a sentence
"You will write pages and pages of interesting stuff, and then you will write a lot of conversation which is just absolute waste, without any point or worth-whileness at all; and you don't seem to know the difference."
"The prospect who finds proof like this backing up a letter is forced to feel the worth-whileness of your goods or your proposition, and he draws forth his money with no sense of fear that he is chancing loss."
"She did this because it was her nature -- she asked no questions about the justice of it, nor the worth-whileness of life in which destruction and death ran riot."