Chemicals and pesticides are used with abandon, sometimes leading to uncultivable soil.
Truffles are uncultivable, so there are no truffle farms to produce affordable truffles for the masses.
The great plain of Irak, the ancient Babylonia, is not only uncultivated now, but for the most part is uncultivable.
What remained outside this and the residential patches of private land was classified as cultivable and uncultivable.
uncultivable, un-kul′ti-va-bl, adj. not capable of being cultivated.