The term "more leisure-class" implies a lifestyle characterized by abundance, luxury, and idleness. Its antonyms, on the other hand, describe a way of living that focuses on simplicity, frugality, and hard work. Words such as "austere," "spartan," "plain," and "modest" all represent a stark contrast to the more leisure-class lifestyle. Moreover, "busy," "industrious," "hardworking," and "diligent" all emphasize the importance of productivity and achievement over leisure and leisurely pursuits. Overall, the antonyms for the term "more leisure-class" can be used to describe people who value simplicity, industry, and practicality over indulgence and excess.