The term 'gelled' refers to the state of a substance that has solidified or become stable in some way. Some antonyms for this word could include 'liquified,' indicating that a once-solid substance has become more fluid, or 'disintegrated,' implying that something that was once cohesive has fallen apart or lost its structure. Other antonyms might include 'disorganized,' 'chaotic,' 'loose,' or 'unstable,' suggesting a lack of structure or a state of disarray. Overall, antonyms for 'gelled' evoke the idea of disintegration or lack of cohesion, contrasting with the stable, solid structure that the word itself implies.