Dungiest is an adjective used to describe something that is dirty, grimy, or unsanitary. The antonyms for this word are words that describe cleanliness, tidiness, and orderliness. Some of the antonyms for dungiest include hygienic, pristine, polished, spotless, immaculate, and squeaky clean. Using these words to describe a space, object or a person, would give a completely different impression than the word "dungiest." It's important to use the right antonyms for a word in order to convey the right impression about something or someone. Thus, it's always better to choose the right antonyms that relate with a particular word or situation.