Synonym of IMPERTINENT

Answer: Option A

Impudent : not showing due respect for another person; impertinent.
Sceptical : not easily convinced; having doubts or reservations.
Thoughtless : (of a person or their behaviour) not showing consideration for the needs of other people.
Irritable : having or showing a tendency to be easily annoyed.
Impertinent : not showing proper respect; rude.

Synonym of Impertinent is Impudent