The antonyms for the word "blobbier" are lean, sinewy, slender, skinny, and thin. These words describe a person or object that is not soft, plump, or voluminous. Lean and sinewy typically refer to a body type that is muscular and toned, while slender, skinny, and thin describe a body type that is thin and slender. Additionally, these antonyms can also refer to objects that are not bulky or rounded. Using antonyms such as these can help to create more vivid and precise descriptions in writing, allowing for a more detailed portrayal of a character, situation, or setting.