1. (a.) Not pertinent; not pertaining to the matter in hand; having no bearing on the subject; not to the point; irrelevant; inapplicable.

2. (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 impertinent coxcomb; an impertinent remark.

3. (a.) Trifling; inattentive; frivolous.

4. (n.) An impertinent person.

adrift arrogant audacious beside the mark beside the point beside the question biggety bluff bold brash brassy brazen bumptious busy busybody challenging cheeky chutzpadik cocky contemptuous crusty daring defiant defying derisive discourteous disdainful disregardful disrespectful extraneous extrinsic facy flip flippant foreign forward fresh gally gratuitous greatly daring immaterial impolite impudent inadmissible inapplicable inapposite inappropriate incidental inconsequent inquisitive insolent interfering intrusive irrelative irrelevant malapert meddlesome meddling nervy nihil ad rem nonessential nosy not at issue obtrusive off the subject offensive officious out-of-the-way parenthetical pert presumptuous prying pushing pushy regardless of consequences rude sassy saucy self-appointed smart smart-alecky smart-ass snoopy uncalled-for uncivil unessential wise-ass