A person one who abandons his religious faith is called?

A person one who abandons his religious faith is called?

جو شخص اپنے مذہب کو ترک کر دے اسے کیا کہتے ہیں؟
Explanation

A person who abandons their religious faith is called an apostate.

An apostate renounces a previously held belief, particularly in the context of religion.