idiopathic

IPA: ɪdioʊpˈæθʌk

(pathology) Of, relating to, or designating a disease or condition having no known cause.

Examples of "idiopathic" in Sentences

The word idiopathic in idiopathic pulmonary fibrosis means no one knows what causes the disease.
Medically, it is 'idiopathic' - which means that it arises spontaneously, from an unknown cause.
Annoyingly for some people, no actual cause can be found - this is known as idiopathic rhinitis and is more difficult to treat.
Pseudotumor cerebri, also known as idiopathic intracranial hypertension or benign intracranial hypertension, was the latest disease a blog reader was 100 percent completely sure was the cause of my headache.