The word 'mineralizing' means to convert into a mineral form. However, there are several antonyms that can be used to describe the opposite process. Some of the commonly used antonyms for mineralizing are demineralizing, de-mineralizing, and decalcifying. Demineralization refers to the removal of minerals, such as calcium and magnesium, from water or food, while de-mineralizing involves decreasing the mineral content or the quality of the mineral in a substance. Decalcification, on the other hand, refers to removing calcium deposits, primarily from bones and teeth. These antonyms are often used in the context of natural and human-made processes, such as water treatment, health care, and soil formation.