Related Clues:

• Inclined to interrupt, say
• Lacking etiquette
• Lacking culture
• Disrespectful
• Insulting
• Not at all polite
• Needing refinement
• Intentionally impolite
• Primitively simple
• Base in values
• Hardly sensitive
• Ill-bred
• Like cutting in line, e.g.
• Lacking social graces
• Bad-mannered