The antonyms for the term "most leisure-class" would be words that convey the opposite meaning. These words would describe a lifestyle that is not focused on leisure, luxury, or extravagance. Antonyms for "most leisure-class" could include the terms "frugal," "hardworking," "industrious," "restrained," and "thrifty." These words describe a lifestyle that is practical, focused on savings and moderation, and values hard work over indulgence. While some may aspire to a leisure-class lifestyle, others find fulfillment in a more traditional, down-to-earth lifestyle where practicality and hard work are the norm. Ultimately, the antonyms for "most leisure-class" describe a lifestyle that is focused on balance, discipline, and moderation.