Definitions for unpolished
Random House Webster's College Dictionary
not carefully reworked or perfected or made smooth by polishing
"dull unpolished shoes"
gauche, graceless, unpolished(adj)
lacking social polish
"too gauche to leave the room when the conversation became intimate"; "their excellent manners always made me feel gauche"
Not polished; not brought to a polish.
Deprived of polish.
Not refined in manners; uncivilized; rude; plain.