impropriety

 
Pronunciation: /ˌɪmprəˈprʌɪəti/

noun (plural improprieties)

[mass noun]
  • failure to observe standards of honesty or modesty; improper behaviour or character: she was scandalized at the impropriety of the question [count noun]: there are no demonstrable legal improprieties

Origin:

early 17th century (also in the sense 'inaccuracy'): from French impropriété or Latin improprietas, from improprius (see improper)