- A disease of unknown origin or cause.
- A primary disease arising spontaneously with no apparent external cause.
Origin of idiopathyNew Latin idiopathīa, primary disease, from Greek idiopatheia : idio-, idio- + -patheia, -pathy.
Variant of idiopathic
designating or of a disease whose cause is unknown or uncertain
Origin of idiopathic; from Classical Greek idiopatheia, feeling for oneself alone (see idio- and amp; -pathy) + -ic