Antonyms for the phrase "more methodological" may include "less structured," "haphazard," "improvised," "inconsistent," or "casual." These terms suggest a lack of organization or system, as opposed to the deliberate and meticulous approach implied by "more methodological." Another antonym might be "unstructured," which connotes a lack of predetermined plan or framework. Additionally, "spontaneous," "unsystematic," or "unmethodical" could also be considered antonyms, as they suggest a lack of deliberate planning or attention to detail. Whatever the opposite of "more methodological" may be, it typically implies a lack of rigor, precision, or thoroughness.