1. rude - Ill-mannered; discourteous
2. discourteous - Exhibiting no courtesy; rude
3. disrespectful - Having or exhibiting a lack of respect; rude and discourteous
4. impertinent - Exceeding the limits of propriety or good manners; improperly forward or bold
5. impolite - Not polite; discourteous
6. ill-mannered - Lacking or indicating a lack of good manners; rude
7. surly - Sullenly ill-humored; gruff
8. incivil - rudeness, boorishness, uncouthness
9. uncouth - Crude; unrefined
10. obnoxious - Very annoying or objectionable; offensive or odious
11. repugnant - Arousing disgust or aversion; offensive or repulsive
12. abhorrent - Disgusting, loathsome, or repellent
13. obstinate - Stubbornly adhering to an attitude, opinion, or course of action; obdurate
14. insolent - Presumptuous and insulting in manner or speech; arrogant
15. immature - Marked by or suggesting a lack of normal maturity
16. offensive - Causing anger, displeasure, resentment, or affront
17. objectionable - Arousing disapproval; offensive
18. contrary - Opposed, as in character or purpose
19. undisciplined - not subjected to discipline
20. impudent - Characterized by offensive boldness; insolent or impertinent