"a rare work, today almost inaccessible"
"timber is virtually unobtainable in the islands"
"untouchable resources buried deep within the earth"
This savage hero was not inaccessible to pity.
A few rocky beaches, the best of them inaccessible except by boat.
出自： D. DeLillo
The inaccessible regions of the mind are more sizable, and doubtless more important.
出自： P. Gay