Most unhewn means the least refined or unpolished. Opposites of most unhewn are words like polished, refined, sophisticated, or cultivated. A polished object shows no flaws or roughness, whereas an unhewn object is considered raw and unrefined. Similarly, a refined person is characterized by their elegance and taste, while an unhewn person lacks civility and manners. Sophisticated means cultured or worldly, while an unhewn person may appear uncivilized or uneducated. And, a cultivated person is refined through education and experience, while most unhewn people may lack exposure and refinement.