impertinent

adj

1. Insolent, ill-mannered or disrespectful; Disregardful.

   ““Divine receptacle of excellence, let it not be deemed impertinent, or deviating from the rules of propriety, if I propound one queſtion which now labours in my breaſt; aſſuring me firſt, you will not let the ſceptre of true judgment depart from your right hand.””

2. (archaic)Not pertaining or related to (something or someone); Irrelevant or useless.

   “Curious speculations, and the contemplation of things that are impertinent to us, and do not concern us, nor serve to promote our happiness, are but a more specious and ingenious sort of idleness”

   “How impertinent that grief was which served no end!”

noun

1. An impertinent individual.

   “Get near fat Mr. Dutton, and behind the screen of his prodigious elbow, you will be comfortably recessed from curious impertinents.”