antipodean, back of beyond, beyond reach, beyond the bounds, closed forever to, closed to, godforsaken, hyperborean, impenetrable, impervious, inaccessible, lost to, out-of-the-way, out of earshot, out of hearing, out of range, out of sight, un-come-at-able, unaccessible, unapproachable, unattainable, unavailable, undiscoverable, ungetatable, ungettable, unobtainable, unprocurable, unreachable, unsecurable, untouchable