Id`i*op"a*thy (?), n.; pl. Idiopathies (#). [Gr. &?;; 'i`dios proper, peculiar + &?;, &?;, to suffer: cf. F. idiopathie.] 1. A peculiar, or individual, characteristic or affection.

All men are so full of their own fancies and idiopathies, that they scarce have the civility to interchange any words with a stranger.

2. (Med.) A morbid state or condition not preceded or occasioned by any other disease; a primary disease.