The term "most proletarian" refers to the category of individuals who belong to the working class or proletariat. Antonyms for this term could include "most affluent," which refers to the highest income earners or individuals with substantial wealth. Other possible antonyms could be "most privileged," which refers to individuals who have access to exclusive resources, opportunities, or social networks based on their background, connections or status. Lastly, "most elite" is another term that could be used as an antonym for "most proletarian," referring to individuals who have reached the highest levels of social, economic or generational status, characterized by exceptional wealth, education, or cultural refinement.