unperson vs nonperson

unperson and nonperson both are nouns.

Word	Noun	Adjective	Verb	Adverb
unperson	Yes	No	No	No
nonperson	Yes	No	No	No

As nouns, unperson and nonperson are synonyms defined as:

unperson and nonperson: a person regarded as nonexistent and having no rights; a person whose existence is systematically ignored (especially for ideological or political reasons)

unperson (noun)	nonperson (noun)
a person regarded as nonexistent and having no rights; a person whose existence is systematically ignored (especially for ideological or political reasons)	a person regarded as nonexistent and having no rights; a person whose existence is systematically ignored (especially for ideological or political reasons)