lack of decorum; lack of propriety, good taste, etc.
2.
indecorous conduct, speech, etc.
Word origin
L, neut. of indecorus
indecorum in American English
(ˌindɪˈkɔrəm, -ˈkour-)
noun
1.
indecorous behavior or character
2.
something indecorous
Word origin
[1565–75; ‹ L, n. use of neut. of indecōrusindecorous]This word is first recorded in the period 1565–75. Other words that entered Englishat around the same time include: conglomerate, model, node, syntax, volley
Examples of 'indecorum' in a sentence
indecorum
As regarded indecorum of dress, the examiners had insisted on deletion when a dress appeared indecent or suggestive.