What does controller Deadzone mean?

Tags

1. #around
2. #stick
3. #movement
4. #small
5. #slightly
6. #controllers
7. #respond
8. #deadzone
9. #cause
10. #built
11. #thumbstick
12. #controller
13. #games
14. #sticks
15. #doesn
16. #control
17. #deadzones
18. #sitting
19. #still