S: (adj) untouchable (beyond the reach of criticism or attack or impeachment) "for the first time criticism was directed at a hitherto untouchable target"- Newsweek
S: (adj) untouchable (forbidden to the touch) "in most museums such articles are untouchable"
S: (adj) untouchable ((especially used in traditional Hindu belief of the lowest caste or castes) defiling)
S: (adj) inaccessible, unobtainable, unprocurable, untouchable (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"