IPA: /ˌɪn.ək.səˈbɪl.ɪ.ti/
KK: /ɪnˌækəsəˈbɪləti/
The state of being difficult or impossible to reach or access.
The inaccessibility of the remote village made it hard for supplies to arrive.
Inaccessibility → It is formed from "in-" (meaning not), "access" (from Latin "accessus", meaning approach or entry), and "-ibility" (meaning the quality of being). The word "inaccessibility" means the quality of not being able to be approached or entered.
Think of 'not' ('in-') being able to 'approach' ('access') something, which helps you remember that 'inaccessibility' refers to something that cannot be reached.