The words that could be considered antonyms for "more jelled" include words like messy, disorganized, scattered or disjointed. These words do not carry the same sense of being cohesive or well-defined as "jelled". "Jelled" implies a sense of unity, cohesiveness, and clear direction. In contrast, the suggested antonyms imply a lack of direction and unity. When used in the context of a team, "more jelled" suggests that members are working together well, understand their roles and share a clear sense of purpose. By contrast, the opposite of "more jelled" suggests a lack of coordination, a lack of shared vision, and poor teamwork.