| Noun | 1. | untouchable - belongs to lowest social and ritual class in India Synonyms: Harijan |
| Adj. | 1. | untouchable - beyond the reach of criticism or attack or impeachment; "for the first time criticism was directed at a hitherto untouchable target"- Newsweek |
| 2. | untouchable - impossible to assail Synonyms: unassailable | |
| 3. | untouchable - forbidden to the touch; "in most museums such articles are untouchable" | |
| 4. | untouchable - defiling to the touch; especially used in traditional Hindu belief of the lowest caste or castes | |
| 5. | 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" |