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The definition of impropriety

3 Definitions of: impropriety

1. noun, lack of propriety; indecency; indecorum
2. noun, an improper act or use
3. noun, the state of being improper
4. Show me some examples of this word: impropriety
5. Show me the etymology of the word: impropriety

Synonyms:	indecency, vulgarity, incongruity, indecorum, lapse, mistake, slip, blunder, gaffe, bloomer (Brit. informal)	And more...
Antonyms:	propriety

From Collins