Antonyms for the word "more straining" would include words such as "relaxing," "easy," and "effortless." These terms suggest a sense of ease and lack of tension, as opposed to the feeling of strain that the original word implies. Other antonyms could include "restful," "gentle," and "calm." These words are particularly useful for describing activities, environments, or situations that are devoid of stress or pressure. By using antonyms to describe the opposite of "more straining," we can create a fuller picture of the range of possibilities when it comes to physical and mental exertion.