Ungraded and Unrefined

Ungraded adjective - Not arranged in order hierarchically.

Unrefined and ungraded are semantically related. in prepared topic. In some cases you can use "Unrefined" instead an adjective "Ungraded", when it comes to topics like crude.

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

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