Dictionary definition · untouchable
noun
- belongs to lowest social and ritual class in India
adjective
- beyond the reach of criticism or attack or impeachment"for the first time criticism was directed at a hitherto untouchable target"
- impossible to assail
- forbidden to the touch"in most museums such articles are untouchable"
- (especially used in traditional Hindu belief of the lowest caste or castes) defiling
- not capable of being obtained"a rare work, today almost inaccessible"
Source: Open English WordNet (CC BY 4.0).