Idiopathic \Id`i*o*path"ic\, Idiopathical \Id`i*o*path"ic*al\, a. [Cf. F. idiopathique.] (Med.) Pertaining to idiopathy; characterizing a disease arising primarily, and not in consequence of some other disease or injury; -- opposed to {symptomatic}, {sympathetic}, and {traumatic}. -- {Id`i*o*path"ic*al*ly}, adv.