You searched for: “concealability
concealability (s) (noun) (no pl)
The capability of something or even someone that can be hidden, withdrawn or removed from observation, covered up, or kept out of sight: The concealability of the hideaway in little Sally's room was great because she could sit there quietly and her parents couldn't see or hear her at all!
This entry is located in the following units: -ability (page 2) ceal- + (page 1)