This is the 12697th most frequent Polish word.
nienapisanych
"Not written."
The word 'nienapisanych' is used as an adjective describing pages that have not been written on.
W moim notatniku znalazłem kilka stron nienapisanych.
In my notebook, I found several unwritten pages.
Here, 'nienapisanych' is used metaphorically to suggest ideas that have yet to be officially documented or written.
Podczas prezentacji wspominałem o ideach, które jeszcze pozostają nienapisane.
During the presentation, I mentioned ideas that still remain unwritten.
In this sentence, 'nienapisanych' refers to novels, conceptualized by the writer but not yet committed to paper or finalized.