Jisho

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Wikipedia definition
1. Persona non grataPersona non grata, literally meaning "an unwelcome person", is a legal term used in diplomacy that indicates a proscription against a person entering the country. It is the most serious form of censure which one country can apply to foreign diplomats, who are otherwise protected by diplomatic immunity from arrest and other normal kinds of prosecution.
Read “Persona non grata” on English Wikipedia
Read “ペルソナ・ノン・グラータ” on Japanese Wikipedia
Read “Persona non grata” on DBpedia

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