The word "gloppier" refers to something that is messy, unorganized or confusing. Therefore, its antonyms would be words that describe the opposite, such as neat, tidy, organized, clear, structured or comprehensible. Other antonyms could be words that suggest elegance, such as refined, sophisticated or polished. Additionally, words like precise, exact, or accurate could be antonyms for "gloppier" as they indicate a high level of attention to detail that would prevent messiness or confusion. Overall, antonyms for "gloppier" would include any words that suggest a clean, clear, or organized state of being, as opposed to something cluttered or jumbled.