Antonyms for the word "swarming over" could include words like "scattered," "dissipated," "disorganized," "sparse," and "isolated." These words describe a state of low concentration, rather than a dense and concentrated grouping. Alternatively, one might use words like "dispersed," "separated," "divided," "spread out," or "individuated," which imply that individuals are distinct and widely dispersed. These antonyms convey the opposite of a cohesive, unified force, instead communicating a sense of fragmentation and distance. Whether describing a situation or the behavior of a group, these antonyms help to paint a vivid and nuanced picture of dynamics and relationships.