Calorify, which means to increase the calorific value of something, is a relatively uncommon word. However, there are several antonyms for this term that are more commonly used. One antonym is 'decalorify,' which refers to reducing the energy content of a substance. 'De-energize' and 'un-stoke' are also opposites of calorify, implying the act of removing energy from a system or lowering the temperature. Other antonyms for calorify include 'cool,' 'chill,' 'freeze,' and 'harden.' These words connote the opposite of heating or warming up, suggesting a decrease in energy or temperature. In summary, while calorify may have limited practical use, its antonyms represent a broad range of concepts related to temperature and energy.