Antonyms for the word "most cleansed" could include phrases like "most dirty" or "most contaminated." Other antonyms might include "unclean," "soiled," or "polluted." These words all point to a lack of cleanliness or hygiene, suggesting that something has not been properly cleaned or sanitized. Other antonyms might include "grubby," "stained," "grimy," or "mucky." Essentially, any word that implies a lack of cleanliness, whether it's due to dirt or germs or simply a lack of effort, could serve as an antonym for the phrase "most cleansed.