The term "formalizes" means to make something official or follow a strict protocol. The antonyms for formalizes could be informality, relaxed, casual or unceremonious. If a process is being formalized, it can be antithetical to the idea of being flexible or adaptable. Therefore, its antonyms may include words like spontaneous or impromptu. Breaking out of the formal mold might provide an opportunity for creativity and free-thinking, which is why informal approaches could be quite beneficial. The word "formalize" also has some synonyms that closely relate to its definition, including ''standardize,'' ''regularize,'' and ''legitimize.'' Overall, the antonyms of formalize revolve around informality, flexibility, and free-thinking.