Lacking refinement

This time we are looking on the crossword puzzle clue for: Lacking refinement.
it’s A 18 letters crossword definition.
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Possible Answers:

RAW.

Last seen on: –L.A. Times Daily Crossword – Sep 29 2022
USA Today Crossword – Jun 17 2022
Wall Street Journal Crossword – May 04 2022 – Double Play
Wall Street Journal Crossword – May 04 2022 – Double Play

Random information on the term “RAW”:

A raw material, also known as a feedstock, unprocessed material, or primary commodity, is a basic material that is used to produce goods, finished goods, energy, or intermediate materials that are feedstock for future finished products. As feedstock, the term connotes these materials are bottleneck assets and are required to produce other products.

The term raw material denotes materials in unprocessed or minimally processed states; e.g., raw latex, crude oil, cotton, coal, raw biomass, iron ore, air, logs, water, or “any product of agriculture, forestry, fishing or mineral in its natural form or which has undergone the transformation required to prepare it for international marketing in substantial volumes”. The term secondary raw material denotes waste material which has been recycled and injected back into use as productive material.

While pottery originated in many different points around the world, it is certain that it was brought to light mostly through the Neolithic Revolution. That is important mostly because of its ability to store and carry a surplus of supplies for the first agrarian. Although most jars and pots were fire-clay ceramics, Neolithic communities created kilns that were able to fire such materials to remove most of the water to create very stable and hard materials. Without the presence of clay on the riverbanks of the Tigris and Euphrates in the Fertile Crescent, such kilns would have been impossible for people in the region to have produced. Using these kilns, the process of metallurgy was possible once the Bronze and Iron Ages came upon the people that lived there.

RAW on Wikipedia