uncultivated

From un- +‎ cultivated.

uncultivated (comparative more uncultivated, superlative most uncultivated)

1. Not cultivated by agricultural methods; not prepared for cultivation.
2. Inadequately educated; lacking art or knowledge

   Synonyms: unrefined, uncultured, uncivilized

   • 1794, Charlotte Smith, chapter X, in The Banished Man. […], volume II, London: […] T[homas] Cadell, Jun. and W[illiam] Davies, (successors to Mr. [Thomas] Cadell) […], →OCLC, page 199:

     I ſaw you were taken with her, which I ſhould not have expected; for after all, it is but a little uncultivated ruſtic, and ſurely rather ſhewy than handſome.

3. Not attended to or fostered.