Impiety is often used referring to lack of respect towards religious practices or beliefs. The villagers were shocked by the impiety of the new teacher who didn't bow at the shrine.
Pro Tip 2/3
Cultural Sensitivity
Understanding what is sacred in different cultures can help avoid impiety. While touring the temple, they were careful to avoid any impiety in their behavior.
Pro Tip 3/3
Negative Emotion
Impiety usually evokes strong negative reactions from people who value the disrespected entity. The artist was met with outrage for the impiety in his controversial painting.