Also found in: Acronyms.
Any country that is not a member of the European Union (EU), the European Free Trade Association (EFTA), or the European Economic Area (EEA). Did the UK become a third country after Brexit? This is still considered a third country in the eyes of the EU, so you can't just move to Italy for work the way a person from, say, Hungary could.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.