definition of
untouchable

[1] #1 untouchable n. [Harijan] belongs to lowest social and ritual class in India. wn

[2] #2 untouchable s. beyond the reach of criticism or attack or impeachment; "for the first time criticism was directed at a hitherto untouchable target"- Newsweek. wn

[3] #3 untouchable s. [unassailable] impossible to assail. wn

[4] #4 untouchable s. ( especially used in traditional Hindu belief of the lowest caste or castes) defiling. wn

[5] #5 untouchable s. [inaccessible, unobtainable, unprocurable] 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". wn