untouchable >> ʌnˈtʌtʃəb(ə)l
Definition: [adjective] not able or allowed to be touched or affected.
Example: drug barons who were legally untouchable
Definition: [adjective] of or belonging to the lowest-caste Hindu group or the people outside the caste system.
Definition: [noun] a member of the lowest-caste Hindu group or a person outside the caste system, contact with whom is traditionally held to defile members of higher castes.