Unrefined and Weather-beaten

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

Weather-beaten and unrefined are semantically related. In some cases you can use "Weather-beaten" instead an adjective "Unrefined".

Weather-beaten adjective - Worn by exposure to the weather.

Unrefined and weather-beaten are semantically related. Sometimes you can use "Unrefined" instead an adjective phrase "Weather-beaten".