1) very rude, disrespectful (impudent)
2) not real or genuine; to make fun of (a person, way of speaking etc) (especially by copying in an unkind or disrespectful way) (mock)
3) to say disrespectful things (about a person, belief etc); to eat (food) greedily (scoff)
showing contempt
arrogant, insolent
impolite (the usual word)
rude, impolite
not showing deserved respect
irreverent
wicked (the more usual word)
not religious
not polite
having bad manners
paying no attention to; regardless of (which is more usual)
without regard
not showing proper respect
lively, bold
scornful; cynical
sarcastic
not (yet) civilized; (of behaviour) bad, thoughtless
wild, uncultured
