Impious (adjective)

Lack of respect or reverence for God or sacred things; irreverent; disrespectful.

Origin:

Impious comes from the latin word "impius" which means "not pious or not devout.".

Examples:

1. His impious behavior in the church caused a stir.
2. Her impious attitude towards religion was unacceptable.
3. The impious act of desecrating the tomb was a crime.
4. The impious words were not tolerated by the congregation.
5. The impious attitude towards the sacred ritual was disrespectful.