Harijan vs untouchable

Harijan and untouchable both are nouns.

Word	Noun	Adjective	Verb	Adverb
Harijan	Yes	No	No	No
untouchable	Yes	Yes	No	No

As nouns, Harijan and untouchable are synonyms defined as:

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

Harijan (noun)	untouchable (noun)
belongs to lowest social and ritual class in India	belongs to lowest social and ritual class in India

Harijan (adjective)	untouchable (adjective)
	forbidden to the touch
	impossible to assail
	beyond the reach of criticism or attack or impeachment
	not capable of being obtained
	(especially used in traditional Hindu belief of the lowest caste or castes) defiling