persona non grata | pərˌsōnə ˌnän ˈɡrädə |

noun (plural personae non gratae | ˌpərˌsōnī ˌnän ˈɡrädī, ˌpərˌsōnē ˌnän ˈɡrädē |)

an unacceptable or unwelcome person. Compare with persona grata: he was persona non grata with the regime.