The antonyms for the phrase "more unabating" would include options such as less unrelenting, decreasingly persistent, diminishingly ceaseless, and gradually relenting. These antonyms denote a reduction or loosening of the intensity of the original phrase, which is synonymous with something that is continuing without pause or weakening. In contrast, these antonyms refer to a lessening of the degree of that very idea, suggesting a respite or a slowdown in the process. Therefore, when seeking to convey the opposite meaning of "more unabating," one might consider using these alternative expressions to express a higher level of specificity or nuance in their language.