One Who Believes the Opposite of Their Religion

This page is the CodyCross answer for the clue below from Culinary Arts, Group 135, Puzzle 5 (Blueberry Pie).

Question is: One Who Believes the Opposite of Their Religion

and the answer is: HERETIC

Word Meaning:

HERETIC — Someone whose beliefs are contrary to the fundamental tenets of a religion they claim to belong to.

Definitions from Wiktionary.