What does "idiopathic" mean?

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

What is a synonym for "idiopathic"?

Common synonyms include: no obvious cause.

Pronounced //ˌɪdioʊˈpæθɪk//.

/ˌɪdioʊˈpæθɪk/ adj

adj ·Rare ·Advanced level

Adjective

1
Of, relating to, or designating a disease or condition having no known cause. not-comparable
"So when I was diagnosed with a fairly difficult-to-treat disease called idiopathic angioedema and chronic urticaria (a fancy way of saying we don’t know why you swell and hey, enjoy the 24/7 hives) six months ago, I wasn't quite sure how to cope."

Adjective

"I suffer from idiopathic hypersomnia."

From idio- + -pathic. First appears c. 1669, in the publications of William Simpson.