in·de·co·rum /ˌɪndɪˈkorəm, ˈkɔr-/
 無禮,非禮,無禮的言行


 In·de·co·rum n.
 1. Lack of decorum; impropriety of behavior; that in behavior or manners which violates the established rules of civility, custom, or etiquette; indecorousness.
 2. An indecorous or unbecoming action.
 Syn: -- Indecorum is sometimes synonymous with indecency; but indecency, more frequently than indecorum, is applied to words or actions which refer to what nature and propriety require to be concealed or suppressed. Indecency is the stronger word; indecorum refers to any transgression of etiquette or civility, especially in public.

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 indecorum
      n 1: a lack of decorum [syn: indecorousness] [ant: decorum, decorum]
      2: an act of undue intimacy [syn: familiarity, impropriety,
          liberty]