1. 未抛光的：unplug 拔去...塞子 | unpolished 未抛光的 | unpowered 无发动机的

2. 未磨光的：unpolished rice 糙米 | unpolished 未磨光的 | unpolled 弃权的

3. 未磨练的：未磨过的unground | 未磨练的unpolished | 未抹灰的unrendered

4. 未磨光的 未抛光的：unpolarizing 去偏振 | unpolished 未磨光的 未抛光的 | unpolishedrice 糙米

adj

1. lacking social polish

e.g. too gauche to leave the room when the conversation became intimate
their excellent manners always made me feel gauche

Synonym: gauchegraceless

2. not carefully reworked or perfected or made smooth by polishing

e.g. dull unpolished shoes