interloper vs persona non grata

interloper and persona non grata both are nouns.

Word	Noun	Adjective	Verb	Adverb
interloper	Yes	No	No	No
persona non grata	Yes	No	No	No

As nouns, persona non grata is a hypernym of interloper; that is, persona non grata is a word with a broader meaning than interloper:

interloper: someone who intrudes on the privacy or property of another without permission
persona non grata: a person who for some reason is not wanted or welcome

Other hypernyms of interloper include unwelcome person, entrant.

interloper (noun)	persona non grata (noun)
someone who intrudes on the privacy or property of another without permission	a person who for some reason is not wanted or welcome
	a diplomat who is unacceptable to the government to which he is sent