A people group within which there is no indigenous community of believing Christians able to evangelize this people group is called an unreached or least-reached people.
Here Christians can evangelize without needing any outside assistance. Both these terms unreached and least reached have been started to use interchangeably because the former is used a lot in global missions community, resulting into a shift to the latter one.
Usually least reached referred to those people who weren't within the spectrum of the search. Now its context has changed. Yet these small group of people maintain their ultimate faith and may have a determined spirit.
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