'Indecorum' definitions:

Definition of 'indecorum'

From: WordNet
noun
A lack of decorum [syn: indecorum, indecorousness] [ant: decorousness, decorum]
noun
An act of undue intimacy [syn: familiarity, impropriety, indecorum, liberty]

Definition of 'Indecorum'

From: GCIDE
  • Indecorum \In`de*co"rum\, n. [Pref. in- not + decorum: cf. L. indecorous unbecoming.] [1913 Webster]
  • 1. Lack of decorum; impropriety of behavior; that in behavior or manners which violates the established rules of civility, custom, or etiquette; indecorousness. [1913 Webster]
  • 2. An indecorous or unbecoming action. --Young.
  • 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. [1913 Webster]