Antonyms for North American Blastomycosis, a rare fungal disease that affects the lungs, skin, and other parts of the body, would include healthy, disease-free, fungus-free, and unaffected. Other antonyms could be preventative, sterile, protected, and guarded against. Those who have not been exposed to the fungus responsible for North American Blastomycosis may also be described as unexposed, isolated, or at a low risk for the disease. Any term that suggests safety, immunity, or freedom from illness is an antonym for North American Blastomycosis. While uncommon, the disease can be serious, so taking preventative measures is important for those living in areas where the fungus is present.