im·per·ti·nent /(ˌ)ɪmˈpɚ/
 (a.)魯莽的,無禮的,粗魯的,不恰當的
 Im·per·ti·nent a.
 1. Not pertinent; not pertaining to the matter in hand; having no bearing on the subject; not to the point; irrelevant; inapplicable.
    Things that are impertinent to us.   --Tillotson.
    How impertinent that grief was which served no end!   --Jer. Taylor.
 2. 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.
 3. Trifing; inattentive; frivolous.
 Syn: -- Rude; officious; intrusive; saucy; unmannerly; meddlesome; disrespectful; impudent; insolent.
 Usage: -- Impertinent, Officious, Rude. A person is officious who obtrudes his offices or assistance where they are not needed; he is impertinent when he intermeddles in things with which he has no concern. The former shows a lack of tact, the latter a lack of breeding, or, more commonly, a spirit of sheer impudence. A person is rude when he violates the proprieties of social life either from ignorance or wantonness. “An impertinent man will ask questions for the mere gratification of curiosity; a rude man will burst into the room of another, or push against his person, inviolant of all decorum; one who is officious is quite as unfortunate as he is troublesome; when he strives to serve, he has the misfortune to annoy.” --Crabb. See Impudence, and Insolent.
 Im·per·ti·nent, n. An impertinent person. [R.]
 ◄ ►
 impertinent
      adj 1: characterized by a lightly pert and exuberant quality; "a
             certain irreverent gaiety and ease of manner" [syn: irreverent,
              pert, saucy]
      2: not pertinent to the matter under consideration; "an issue
         extraneous to the debate"; "the price was immaterial";
         "mentioned several impertinent facts before finally coming
         to the point" [syn: extraneous, immaterial, orthogonal]
      3: improperly forward or bold; "don't be fresh with me";
         "impertinent of a child to lecture a grownup"; "an
         impudent boy given to insulting strangers" [syn: fresh,
         impudent, overbold, smart, saucy, sassy]