Apostacizing refers to the act of abandoning or renouncing a religious or political belief. Antonyms for apostacizing include embracing, adopting, and accepting. Embracing pertains to the act of holding on to a particular belief or idea, while adopting implies taking up a new belief or ideology. Accepting involves the acknowledgment of a belief or principle without necessarily adopting it. Other antonyms for apostacizing include affirming, upholding, and confirming. These words are often used to express a commitment to one's beliefs and ideologies, as opposed to abandoning or renouncing them.