The word "more variform" implies a greater variety or diversity of shapes, forms, or types. Therefore, a few possible antonyms for this term might include "uniform," "consistent," or "homogeneous." These words suggest a lack of variation or differentiation, in contrast to the constantly changing and diverse nature of "more variform." Other antonyms could include "limited," "restricted," or "narrow," all of which imply an absence of variety or range. Ultimately, the choice of antonym will depend on the specific context in which "more variform" is being used, as well as the speaker's intended tone and meaning.