I have multiple pages that I do not want to be indexed (and they are currently not indexed, so that's great).

They don't have meta descriptions on them and I'm wondering if it's worth my time to go in and insert them, since they should hypothetically never be shown.

Does anyone have any experience with this? Thanks!

The reason this is a question is because one member of our team was linking to this page through Facebook to send people to it and noticed random text on the page being pulled in as the description.