未開

uncivilized, undeveloped

mʲ i k a̠ i
not yet; un- + open; begin
noun Rare #33,304
uncivilized, undeveloped Often describes places, societies, or cultures considered not modernized; can sound judgmental or outdated depending on context.
JA: その地域はまだ未開の土地が多い。
EN: That region still has many undeveloped areas.

全てに覆われた住民不幸な未開

The inhabitants, completely covered in green, are unfortunate savages.

— Бриллиантовая рука (1969)

その当時そこには未開民族が住んでいた

At that time, a primitive tribe lived there.

呪術未開社会において重要な役割もつ

Magic plays an important role in primitive societies.

その島はまだ未開種族がいる

There are still uncontacted tribes on that island.

その島には未開種族がいる

There are primitive tribes on that island.

Sounds similar to