From Longman Dictionary of Contemporary Englishimproprietyim‧pro‧pri‧e‧ty /ˌɪmprəˈpraɪəti/ noun (plural improprieties) [countable, uncountable] formalBAD BEHAVIOUR OR ACTIONSbehaviour or an action that is wrong or unacceptableaccording to moral, social, or professionalstandardsAccusations of impropriety were made against the company’s directors.Examples from the Corpusimpropriety• CaliforniaSecretary of State Bill Jones is probingcomplaints of voterfraud and improprieties in the election, according to informedsources.• I can see no constitutionalimpropriety in this.• Here the Navy is under siege for all kinds of moral and ethicalimproprieties.• This danger is particularly great in relation to proceduralimpropriety, and we shall discuss it again in that context.• When this is done by a private government contractor, the impropriety is obvious.• The mediaevalchurch was divided on the issue of whether there was impropriety in the mimeticrepresentation of holypersonages on stage.• Since Pain was paying no attention to him, he decided that he might without improprietyignore Pain.From Longman Business Dictionaryimproprietyim‧pro‧pri‧e‧ty /ˌɪmprəˈpraɪəti/ noun (plural improprieties) [countable, uncountable] formalbehaviour that is unacceptable according to moral or professional standardsHe facedallegations of impropriety over the insider trading scandal.They argued that these were minor improprieties, not crimes.