breach of decorum

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breach of decorum

A violation of established social norms or expectations, especially as relates to polite society or specific professions. In an unexpected breach of decorum, she announced her candidacy before the governor officially resigned. Discussing personal problems can sometimes be seen as a breach of decorum in polite company.
See also: breach, of
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
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