INDECENCY Meaning of INDECENCY in English n. 1.Indecorum, impropriety, unseemliness, offensiveness, outrageousness.2.Indelicacy, coarseness, grossness, immodesty, impurity, obscenity, foulness, filthiness, vileness. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012