1The impertinent remark made by the young journalist during the press conference sparked a heated debate.
2Was it impertinent of her to question the professor's authority in front of the whole class?
3The impertinent tone of the letter was seen as a deliberate attempt to provoke a reaction from the company's management.
4Try not to be impertinent when speaking to your elders, even if you disagree with their opinions.
5There is a fine line between being confident and being impertinent, and it's essential to know the difference in professional settings.