There are various synonyms for the term "get back in shape" that one can use while communicating or writing about fitness goals. Some of the best synonymous words for "getting back in shape" are regain fitness, restore fitness, recover, get into shape, achieve fitness, rebuild strength, renew health, revive muscles, restore vitality, and return to fitness. These words help describe the process of getting back into shape after a period of inactivity or illness. By using these synonyms, you can add variety and precision to your vocabulary while discussing your fitness goals or writing about them.