Over-indulging is a term that refers to excessive and uncontrollable consumption of food, drink, or any other indulgence. However, there are several antonyms for over-indulging, which mean the opposite. Moderation is the first antonym for over-indulging, which means staying within reasonable limits and avoiding excess. Restraint is another antonym, meaning self-control or avoiding doing something excessively. Limitation is another opposite term, suggesting strict boundaries and avoiding going overboard. Abstaining is an additional antonym for over-indulging, which means avoiding or refraining from indulgence altogether. Each of these antonyms suggests a restraint towards self-control, making sure that the indulgences are reasonable and within limits.