a.
1.
Rude, abusive, overbearing, domineering, contemptuous, insulting, contumelious.
2.
Impertinent, impudent, saucy, pert, malapert.
3.
Insultingly disobedient or insubordinate, impudently or outrageously disrespectful ( to superiors ), froward, contumacious.