Unhewn and Unrefined

Unhewn adjective - (of stone especially) not given a finished form by or as if by hewing.

Unrefined and unhewn are semantically related. in crude topic. In some cases you can use "Unrefined" instead an adjective "Unhewn", when it comes to topics like rough, basic.

Unrefined adjective - Being such as found in nature and not altered by processing or refining.

Unhewn and unrefined are semantically related. Sometimes you can use "Unhewn" instead an adjective "Unrefined".