Blasphemer
/blæsˈfiːmər/
Definition 1 of 1
Pro Tip 1/3Religious Sensitivity
Using 'blasphemer' can offend some people; it's a serious accusation in many cultures. 
Calling someone a blasphemer in his community could lead to social ostracism.
Pro Tip 2/3Historical Context
'Blasphemer' was historically a grave charge, often leading to harsh punishment or death. 
Historically, a blasphemer might have been subjected to public execution.
Pro Tip 3/3Legal Ramifications
In some countries, being labeled a blasphemer can result in legal consequences. 
He was wary of speaking freely to avoid being labeled a blasphemer by local authorities.