Persona non gratahttps://diplomacy.state.gov/wp-content/themes/corpus/images/empty/thumbnail.jpg150150https://secure.gravatar.com/avatar/11563dfe8f018ca189391bda80c0edf6?s=96&d=mm&r=g
A Latin phrase meaning “unwelcome person.” As a legal term, it refers to the practice of a state prohibiting a diplomat from entering the country as a diplomat, or censuring a diplomat already resident in the country for conduct unbecoming of the status of a diplomat.
National Museum of American Diplomacy