The correct is "impolite", the contrary of "polite". It refers to someone who is not educated, polite or courteous. Examples: "It's impolite to point at people." "She is rude, impolite. She won't get this job." "That guy has an impolite behaviour. He doesn't respect any one."

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rude,discourteous, uncivil. Showing no regard for others in manners, speech, behavior, etc...

Impolite= ill mannered