untouchable

名词 untouchable:

1. belongs to lowest social and ritual class in India
   同义词：Harijan

形容词 untouchable:

1. beyond the reach of criticism or attack or impeachment- Newsweek
2. impossible to assail
   同义词：unassailable
3. forbidden to the touch
4. defiling to the touch; especially used in traditional Hindu belief of the lowest caste or castes
5. not capable of being obtained
   同义词：inaccessible, unobtainable, unprocurable