Related Clues:

• Roughly built
• Indelicate
• Far from polite
• Inelegant
• Crass
• Definitely not polite
• Inclined to interrupt, say
• Lacking culture
• Disrespectful
• Insulting
• Not at all polite
• Needing refinement
• Intentionally impolite
• Primitively simple
• Base in values