undeveloped

adjective3

1. •
   Not developed or used.

   • We now also know adding Valančiūnas also yielded a pair of future second-round picks and another young wing (Cissoko) with positional size (and an undeveloped skill set). — 2025
2. •
   not built on, unbuilt; not ready for building on

   • The message from the authorities is straightforward: undeveloped land within city boundaries should no longer be treated as a passive investment, it must be used productively. — 2025
3. •
   lagging behind others, especially in economic or social matters

   • Running as full of enthusiasm as they can, some undeveloped countries are falling farther behind—their needs are growing faster than their achievements. — 1958