a, o, b, e, l, n, t, i, u are letters that make 'unobtainable'
AB, ab, OB, UN, nob, nab, obtainable, able, ain, Tai, no, in, AI, ai, IN, Ob, LE, In, No, Na, Ta, Ab, obtain are words within 'unobtainable'
1 possible definitions for 'unobtainable'
Under this definition, unobtainable is an adjective and has the following properties:
inaccessible, unprocurable, untouchable have the same meaning as 'unobtainable'
inaccessibility, unavailability are derivatives of 'unobtainable'.
unavailable is similar to unobtainable.
"a rare work, today almost inaccessible", "timber is virtually unobtainable in the islands", "untouchable resources buried deep within the earth"