inaccessible
adjective /ˌɪnækˈsesəbl/
  /ˌɪnækˈsesəbl/
- difficult or impossible to reach, get or use- They live in a remote area, inaccessible except by car.
- Dirt can collect in inaccessible places.
- inaccessible to somebody/something The temple is now inaccessible to the public.
- The human brain was thought to be inaccessible to experimental investigation.
 Extra Examples- The hall is inaccessible to wheelchair users.
- The mouth of the river proved inaccessible.
 Oxford Collocations Dictionaryverbs- be
- prove
- seem
- …
 - completely
- totally
- almost
- …
 - by
- to
 
- inaccessible (to somebody) (of language or art) difficult to understand or appreciate- The language of teenagers is often completely inaccessible to adults.
- Opera and high art are often seen as inaccessible to ordinary people.
 
Word Originlate Middle English: from French, or from late Latin inaccessibilis, from in- ‘not’ + accessibilis (from Latin access- ‘approached’, from the verb accedere, from ad- ‘to’ + cedere ‘give way, yield’).