in·de·cen·cy \ənˈdēsənsē, (ˈ)in-, -nsi\noun Etymology: Latin indecentia, from indecent-, indecens indecent + -ia -y 1.: the quality or state of being indecent 2.: something (as a word or an action or a manner of behavior) that is indecent : an offense against decency < innocent and shameless like a child's indecencies — W.A.White >