polished

Made shiny and smooth by rubbing or chemical action.

Naturally shiny and smooth.

Having the husk or outer layers removed. Used of grains of rice.

Refined or sophisticated.

Having no imperfections or errors; well-executed; flawless.

Made smooth by polishing.

Having naturally a smooth, lustrous surface, like that produced by polishing; specifically, in entomology smooth and shining, but without metallic luster.

Brought by training or elaboration to a condition void of roughness, irregularity, imperfections, or inelegances; carefully elaborated; especially, elegant; refined; polite.