idiopathic


id·i·o·path·ic

adj \ˌi-dē-ə-ˈpa-thik\

Definition of IDIOPATHIC

1
: arising spontaneously or from an obscure or unknown cause : primary <idiopathic epilepsy>
2
: peculiar to the individual
id·i·o·path·i·cal·ly \-ˈpa-thi-k(ə-)lē\ adverb

First Known Use of IDIOPATHIC

1669

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