The word "more humongous" refers to something that is even larger or more enormous than the already massive object being described. In contrast, antonyms for this word could include terms like "smaller," "lesser," or "diminished." These words suggest a reduction in size, scope, or importance, which is the opposite of the connotations associated with "more humongous." Other antonyms for this word could include terms like "petite," "miniature," or "tiny," all of which imply a massive difference in size compared to something that is "more humongous." Taken together, these antonyms provide a powerful counterpoint to the idea of overwhelming size and scale.