freitasm:Yes. I have a site with a couple of hundred pages and some aren't to be available for search. Google Search Console helpfully says it's an "issue".
On the subject of non-visible pages, and I have no idea how this would work because it's just a thought, but sometimes it'd be useful to have topics or threads that aren't indexed by Google or visible to non-logged-on users, one example being the Annoy thread where you could complain about organisations or clients without having to worry about said groups recognising themselves in the description. Is something like this possible/feasible/desirable?