Over-taxing is a term used to describe something that is excessively burdensome or demanding. The concept of antonym for over-taxing is essentially the opposite - something that is effortless, easy or uncomplicated. Words like "simple," "easy," "effortless," and "light" could be used as antonyms for over-taxing. Other antonyms could include "relaxing," "leisurely," "unhurried," or "restful" which indicate rest or a less demanding activity. Such antonyms provide a better understanding of what isn't meant by over-taxing and create an opportunity to scan for words that suggest a lighter or more manageable workload.