The antonyms for the word "be-fouled" include purified, cleansed, pristine, spotless, immaculate, and clear. These words are used to describe something that is free from dirt, grime, or any other contaminant. When a place or object is purified, it means that it has been thoroughly cleaned and is now free of impurities. Cleanliness and hygiene are highly valued in our society, and many people strive to maintain a pristine environment. Hence, knowing the antonyms of be-fouled helps you to communicate that something is clean and pure, and that you value those qualities highly.