undeveloped
adj 3
Definitions
adj
1
Not developed or used.
These developments, most of which have taken place during the past 30 years, are remarkable in view of the low traffic density, except in the neighbourhood of Oslo, and the very extensive undeveloped areas of mountain and virgin forest.
2
not built on, unbuilt; not ready for building on
3
lagging behind others, especially in economic or social matters
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