Unrefined and Unpolished

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

Unpolished is a synonym for unrefined in uncultured topic. In some cases you can use "Unpolished" instead an adjective "Unrefined", when it comes to topics like behaviour, courtesy, coarse, boorish. vulgar substitute

Unpolished adjective - Lacking in refinement or good taste.

Unrefined is a synonym for unpolished in courtesy topic. You can use "Unrefined" instead an adjective "Unpolished", if it concerns topics such as crude, uncultured, rough, unsophisticated. vulgar substitute