/im puy"i tee/ , n. , pl. impieties .
1. lack of piety; lack of reverence for God or sacred things; irreverence.
2. lack of dutifulness or respect.
3. an impious act, practice, etc.
[ 1300-50; ME impietie impietas, equiv. to impi ( us ) IMPIOUS + -etas, var., after vowels, of -itas -ITY ]