Wiktionary
a. Having an insufficient population for economic viability
WordNet
adj. having a lower population density than normal or desirable; "the richly endowed but underpopulated Ivory Coast"
Usage examples of "underpopulated".
Adriatic coast as poor and underpopulated, it was fairer and denser by far than the littoral of eastern Spain.
Provided he could survive the harsh climate, difficult terrain, and unknown inimical life-forms that might inhabit this underpopulated, out-of-the-way speck of grit.
Whenever Tan spoke about her childhood, she brought up friends, birthdays, uncles and cousins, trips to Saigon, dances, hundreds of details and incidents that caused my own memory to appear grossly underpopulated by comparison.
Gil was too familiar with the economic domination of a depressed, underpopulated, and largely rural area by a wealthy manufacturing one.
Kirk, they will beam into the underpopulated and relatively safe farming area, where the lan-Chatalia live.
Rome, and thanks to wars and migrations there are many districts up and down this peninsula that have become as underused and underpopulated as any part of modern Greece.
In an underpopulated world life could begin at conception, making abortion illegal, while in an overpopulated world life might begin at birth.
My baronyhell, the entire duchy, for that matteris underpopulated, now.
Cathay is relatively underpopulated and many parts of that rich land are empty.