The word "re-tired" refers to the process of replacing old or worn-out tires with new ones. Antonyms for "re-tired" include words such as brand new, fresh, unused, pristine, unspoiled, and undamaged. These words suggest a sense of newness and lack of wear and tear. Other antonyms for "re-tired" might include words such as rejuvenated, restored, revitalized, or renewed, which imply a sense of renewed energy and vitality. Overall, when considering antonyms for "re-tired," it is helpful to consider words that convey a sense of vitality, newness, and lack of wear and tear.