Antonyms of noun accessibility

1 of 2 senses of accessibility

Sense 1
handiness, accessibility, availability, availableness -- (the quality of being at hand when needed)
       Antonym of inaccessibility (Sense 1)
      => inaccessibility, unavailability -- (the quality of not being available when needed)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun accessibility

2 senses of accessibility

Sense 1
handiness, accessibility, availability, availableness -- (the quality of being at hand when needed)
       => convenience -- (the quality of being useful and convenient; "they offered the convenience of an installment plan")

Sense 2
approachability, accessibility -- (the attribute of being easy to meet or deal with)
       => friendliness -- (a friendly disposition)