untouchable

nouns

belongs to lowest social and ritual class in India
Harijan, untouchable

adjectives

beyond the reach of criticism or attack or impeachment
"for the first time criticism was directed at a hitherto untouchable target"- Newsweek
untouchable
is similar to
immune to attack; impregnable
"gunners raked the beach from invulnerable positions on the cliffs"
invulnerable
impossible to assail
unassailable, untouchable
forbidden to the touch
"in most museums such articles are untouchable"
untouchable
is similar to
not permitted
"impermissible behavior"
impermissible
( especially used in traditional Hindu belief of the lowest caste or castes) defiling
untouchable
is similar to
having a physical or moral blemish so as to make impure according to dietary or ceremonial laws
"unclean meat"; "and the swine...is unclean to you"-Leviticus 11:3
impure, unclean
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"
inaccessible, unobtainable, unprocurable, untouchable