Most composing refers to the act of creating or putting together something in a calm and collected manner. On the flip side, antonyms for the word "most composing" would include terms such as chaotic, frenzied, tumultuous, disordered, unruly, and agitated. Chaos is the complete opposite of composing as it denotes an environment in which everything is unpredictable, unstable, and uncontrolled. Frenzied and agitated mean that someone is in a state of intense excitement or agitation, usually leading to confusion and disorder. Disorderliness and unruliness indicate a lack of organization, structure, or discipline, which makes it impossible to create anything composed in such a scenario.