That impertinent little upstart had the nerve to ask the lady's age!
Advanced English Dictionary
+adjective rude and not showing respect for sb who is older or more important: an impertinent question / child + Would it be impertinent to ask why you're leaving? impertinence noun [U, C, usually sing.]: She had the impertinence to ask my age! impertinently adverb
Collocation Dictionary adj
be, seem | get
Don't you get impertinent with me!
| find sth
She found the question highly impertinent.
highly, very | slightly, somewhat
Random quote: The awareness of our own strength makes us modest.: Paul Cezanne