fourth world

the poorest, most underdeveloped countries of the third world

See fourth world in American Heritage Dictionary 4

also fourth world

noun
The least-developed countries of the Third World, especially those in Africa and Asia.

Related Forms:

  • Fourthˈ-Worldˈ (fôrthˈwûrldˈ, fōrthˈ-) adjective
link/cite print suggestion box