IMPERTINENT a.
Contrary to, or offending against, the rules of propriety or good breeding; guilty of, or prone to, rude, unbecoming, or uncivil words or actions; as, an impertient coxcomb; an impertient remark.
OFFENSE; OFFENCE n. 2 definitions
The act of offending in any sense; esp., a crime or a sin, an affront or an injury. Who was delivered for our offenses, and was raised again for our justification. Rom. iv. 25. I have given my opinion against the authority of two great men, but I hope without offense to their memories. Dryden.