The word "overwhelming" refers to a feeling of being overcome or submerged by something, often in a negative or stressful way. Its antonyms can convey a sense of release, relief, or lightness. Some possible antonyms for overwhelming are "underwhelming," which means disappointing, unsatisfying, or lackluster; "manageable," which suggests something that can be handled or coped with easily; and "moderate," which implies a level of intensity that is balanced or controlled. Other antonyms include "contained," "limited," "mild," "restrained," "simple," and "trivial." Depending on the context, the opposite of overwhelming may vary, but generally, it refers to something that is less intense, less severe, or less imposing.