Antonyms for the medical term "Giant Cell Aortic Arteritis" could include the opposite conditions or diseases, such as small vessel disease, non-inflammatory vascular disease, or normal aortic function. In contrast to the inflammation and thickening of arteries caused by Giant Cell Aortic Arteritis, these antonyms signify the presence of healthy, unobstructed, and normal functioning of blood vessels. Other related antonyms could include normal levels of inflammatory markers, lack of symptoms such as headaches, jaw pain, and vision loss, and absence of damage or scarring in the aortic tissue. These antonyms represent the opposite end of the scale in terms of arterial health, inflammation, and function.