The term "more clustered" implies a higher concentration of objects or structures in a given area. Some antonyms for this phrase could include "spaced out," "dispersed," "scattered," or "sparse." These words suggest a lower density of objects in a particular area, often resulting in a more spread-out or even empty space. Other antonyms that could be used include "spread apart," "isolated," "disorganized," or "sparse," depending on the context and tone of the sentence. Using antonyms is a great way to add variety and nuance to your writing, allowing you to express complex ideas and emotions with greater precision and impact.