polished

perfected or made shiny and smooth

• “his polished prose”
• “in a freshly ironed dress and polished shoes”
• “freshly polished silver”

showing a high degree of refinement and the assurance that comes from wide social experience

• “his polished manner”
• “maintained an urbane tone in his letters”

(of grains especially rice) having the husk or outer layers removed

• “polished rice”

(of lumber or stone) to trim and smooth