n.
Pronunciation: ˌ im-p(r) ə - ' pr ī - ə -t ē
Function: noun
Inflected Form: plural -ties
Etymology: French or Late Latin; French impropriété, from Late Latin improprietat-, improprietas, from Latin improprius
Date: 1607
1 : an improper or indecorous act or remark especially : an unacceptable use of a word or of language
2 : the quality or state of being improper