Is Unproductivity a Word?

What does Unproductivity mean?

: not effective in bringing something about : not yielding results, benefits, or profits : not productive unproductive meetings unproductive strategies unproductive workers.

Is it unproductive or nonproductive?

Being unproductive implies that something could have been productive but no action was taken. Nonproductive implies that something was unsuccessfully trying to be productive. John was unproductive and sat around all day watching movies.