indecorum
[noun]
Synonyms: faux pas, blooper, boner, boo-boo, break, gaffe, impropriety, solecism, incorrectness, indecorousness, inelegance, unbecomingness, unmeetness, unseemliness, untowardness

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Antonyms: decorum

[TahlilGaran] English Synonym Dictionary ▲

indecorum noun. [ɪndɪ'kɔ:rǝm] L16.
[Latin, use as noun of neut. sing. of indecorus adjective: see INDECOROUS.]
1. An indecorous action or proceeding; an offence against recognized standards of behaviour. L16.
■ G. Grote This was a flagrant indecorum, and known violation of the order of the festival.

2. The quality of being indecorous; lack of decorum; improper behaviour. M17.
■ A. Bell A general improvement in public behaviour helped to prevent any further general indecorum.

[TahlilGaran] English Dictionary ▲