Synset

capable of being reached only with great difficulty or not at all
<adj.all>

lexical pointers

antonym

semantic pointers

attribute

availability, handiness, accessibility, availableness

similar to

remote, outback pathless, roadless, trackless, untracked, untrod, untrodden unapproachable, unreachable, unreached, out of reach un-come-at-able, un-get-at-able, ungetatable