The condition of having reduced numbers of inhabitants (or no inhabitants at all).

Roget 893: seclusion, privacy; retirement; reclusion, recess; snugness etc. adj.; delitescence^†; rustication, rus in urbe [Lat.]; solitude; solitariness etc. (singleness) 87; isolation; loneliness etc. adj.; estrangement from the world, voluntary exile; aloofness.    cell, hermitage; convent etc. 1000; sanctum sanctorum [Lat.].    depopulation, desertion, desolation; wilderness etc. (unproductive) 169; howling wilderness; rotten borough, Old Sarum.    exclusion, excommunication, banishment, exile, ostracism, proscription; cut, cut direct; dead cut.    inhospitality^†, inhospitableness etc. adj.; dissociability^†; domesticity, Darby and Joan.    recluse, hermit, eremite, cenobite; anchoret^†, anchorite; Simon Stylites^†; troglodyte, Timon of Athens^†, Santon^†, solitaire, ruralist^†, disciple of Zimmermann, closet cynic, Diogenes; outcast, Pariah, castaway, pilgarlic^†; wastrel, foundling, wilding^†.    ... show more

Dutch: bevolkingsdaling, bevolkingsafname, ontvolking
Polish: opustoszenie, wyludnienie się