The word "round-shouldered" refers to someone who has a stooped posture, with shoulders hunched forward. Antonyms for this term would include words like "upright," "straight-backed," or "erect," which all describe a person with good posture and a straight spine. Other antonyms might include "graceful," "lithe," or "athletic," all of which suggest a person who is physically fit and nimble. In contrast, "round-shouldered" implies a lack of flexibility and mobility, and is often associated with age, infirmity, or poor health. By focusing on the antonyms for this term, we can gain a better understanding of the qualities that we value in ourselves and others, and aspire to embody them more fully.