The word uncleaner implies that something is not clean or dirty. Therefore, antonyms for uncleaner would be words that mean clean or tidy. These words may include clean, hygienic, immaculate, spotless, pristine, polished, or neat. These antonyms represent opposites of uncleaner and convey the idea of something being well-maintained or free from dirt, germs, or debris. Using these antonyms, one can express cleanliness and orderliness, and even establish a sense of beauty in their surroundings. By using these antonyms, one can communicate a positive and fresh outlook on things, thereby fostering a healthy and positive environment.