Impertinent – disrespectful and rude

(Pronounced im-pur-tin-uhnt)

He impersonated his grandad by being incontinent (impertinent), which everyone thought was rude and not showing proper respect. 

Examples of  impertinent in a sentence

They were all happy to see the manager replaced, the old one was a horrible and impertinent man. 

Her grandson's impertinent behaviour was getting him in a lot of trouble at school.

His impertinent attitude towards everyone left him completely alone.