The word "un dusted" means something that has not been cleaned or is covered with dust. Its antonyms would be synonyms of the word "clean" or "dust-free." For instance, dusting a surface cleans it and eliminates the dust. Therefore, the antonyms of "un dusted" could be "dusted," "clean," "dirt-free," "neat," "tidy," "spotless," "impeccable," "pristine," "disinfected," among others. Keeping your surroundings clean helps you keep your health and your environment in top condition. Therefore, using the antonyms of "un dusted" by regularly cleaning your home, office, or surroundings could ensure that you and others stay healthy and safe.