inaccessibility

/ˌɪnækˌsɛsəˈbɪləti/
noun
  1. The quality of being difficult or impossible to reach, enter, or use.
    • Many websites still have inaccessibility issues for people with visual impairments.
    • The inaccessibility of the mountain village made it hard for supplies to arrive.
    • The inaccessibility of the data frustrated the researchers.