If something is un-nearable, it means the chances of not hurting yourself while moving closer to the object is twice small. This means that you can't get close to it, and entry is punishable by a £720 fine and instant decapitation and tickling.
The situation of already being near the object is, in principle, entirely separate. Moving away may or may not be a problem.
Things which are un-nearable
- The Sharpie pen
- Babies - EAT THEM BEFORE THEY EAT YOU!!!!
- 4chan's /b/ board.
- Greeks bearing bearings.