The word "be-spatter" means to splash or soil something with drops or splashes of liquid, usually water or mud. Its antonyms are words that have the opposite meaning or convey the opposite action. The antonyms of "be-spatter" include words such as clean, rinse, purify, polish, and sanitize. These words denote actions that remove dirt, grime, or unwanted substances from a surface or object. While "be-spatter" indicates a messy or dirty condition, its antonyms signify cleanliness, neatness, or tidiness. The choice of words will depend on the context of the situation and the specific result desired.