- impudent, insolent, snotty-nosed, flip - marked by casual disrespect; "a flip answer to serious question"; "the student was kept in for impudent behavior"
Antonym: respectful (indirect, via disrespectful)
- fresh, impertinent, impudent, overbold, smart, saucy, sassy - improperly forward or bold; "don't be fresh with me"; "impertinent of a child to lecture a grownup"; "an impudent boy given to insulting strangers"
Antonym: backward (indirect, via forward)