Mal·thu·sian
adj \mal-ˈthü-zhən, mȯl-, -ˈthyü-\Definition of MALTHUSIAN
: of or relating to Malthus or to his theory that population tends to increase at a faster rate than its means of subsistence and that unless it is checked by moral restraint or disaster (as disease, famine, or war) widespread poverty and degradation inevitably result
— Malthusian noun
— Mal·thu·sian·ism \-zhə-ˌni-zəm\ noun