persona non grata

Noun (2)

1. a diplomat who is unacceptable to the government to which they are sentType of diplomat, diplomatist
2. a person who for some reason is not wanted or welcomeSynonyms: unwelcome personType of actor, doerKinds villain, intruder, troublemaker, tease, sourpuss, ingrate, unpleasant person, disreputable person, spoilsport, meddler +1 more