[1] : The Collaborative International Dictionary of English v.0.48

inaccessible \in`access"ible\, a. l. inaccessibilis: cf. f.
   inaccessible. see in- not, and accessible.
   not accessible; not to be reached, obtained, or approached;
   as, an inaccessible rock, fortress, document, prince, etc. --
   in`access"ibleness, n. -- in`access"ibly, adv.
   1913 webster
see also:
in- accessible in`access"ibleness in`access"ibly 

[2] : WordNet (r) 2.0

inaccessible
     adj 1: capable of being reached only with great difficulty or not
            at all syn: unaccessible ant: accessible
     2: not capable of being obtained; "a rare work, today almost
        inaccessible"; "timber is virtually unobtainable in the
        islands"; "untouchable resources buried deep within the
        earth" syn: unobtainable, unprocurable, untouchable
see also:
unaccessible accessible unobtainable unprocurable untouchable 

[3] : Moby Thesaurus II by Grady Ward, 1.0

71 moby thesaurus words for "inaccessible":
   olympian, aloof, antipodean, back of beyond, backward, bashful,
   beyond reach, blank, chilled, chilly, closed forever to, closed to,
   cold, constrained, cool, detached, discreet, distant, exclusive,
   expressionless, far, far-off, faraway, forbidding, frigid, frosty,
   godforsaken, guarded, hyperborean, icy, impassable, impassive,
   impenetrable, impersonal, impervious, introverted, lost to, modest,
   offish, out of reach, out-of-the-way, remote, removed, repressed,
   reserved, restrained, reticent, retiring, seclusive, shrinking,
   standoff, standoffish, subdued, suppressed, un-come-at-able,
   unapproachable, unattainable, unavailable, uncongenial,
   undemonstrative, undiscoverable, unexpansive, ungenial,
   ungetatable, ungettable, unobtainable, unprocurable, unreachable,
   unsecurable, untouchable, withdrawn

Inaccessible >> I Words
Inaccessible, definition of term: Inaccessible
inaccessible_pag1.html