Antonyms for the word "more unhygienic" include "cleaner," "hygienic," "sanitary," "sterile," and "pure." These words suggest a state of cleanliness, orderliness, and proper hygiene practices. For instance, "cleaner" refers to something that is free of dirt, grime, or bacteria, while "hygienic" denotes a condition that promotes health and prevents infection. "Sanitary" implies cleanliness and disinfection, while "sterile" suggests a state of completely germ-free condition. Lastly, "pure" characterizes something that is free of contaminants or pollutants. By using these antonyms, one can highlight a positive aspect of an item or environment, which is important for promoting health and wellbeing.