Run-of-the-mill and Unrefined

Run-of-the-mill adjective - Being of the type that is encountered in the normal course of events.

Unrefined and run-of-the-mill are semantically related. In some cases you can use "Unrefined" instead an adjective phrase "Run-of-the-mill".

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

Run-of-the-mill and unrefined are semantically related. Sometimes you can use "Run-of-the-mill" instead an adjective "Unrefined".