There are several antonyms for the term "fatigue fractures", which is a type of bone injury that occurs due to repetitive stress or strain. The opposite or antonym of fatigue fractures can be strong, healthy bones, or normal bone wear and tear. Other antonyms can include robust, sturdy, unbreakable, or durable bones which are resistant to fractures. In contrast to fatigue fractures, healthy bones can withstand daily activities such as walking, running, jumping or lifting without the risk of sudden fractures. Therefore, it is essential to maintain a healthy lifestyle, eat nutritious meals and engage in regular physical activity to prevent fatigue fractures and promote strong, healthy bones.