There are several antonyms for the word "apostacizes," which means to abandon one's beliefs or religion. Some of its antonyms include the words adhere, maintain, believe, support, and follow. Adhere means to stick to or hold on to something, whereas maintain means to keep or preserve something. Believe means to have faith or trust in something or someone, while support means to assist or help someone or something. Lastly, follow means to adhere to a specific example or command. These antonyms present the opposite meaning of apostacizes and signify a person's commitment and devotion to their beliefs, religion, or values.