idiopathic

adjective

id·​i·​o·​path·​ic ˌi-dē-ə-ˈpa-thik How to pronounce idiopathic (audio)
1
: arising spontaneously or from an obscure or unknown cause : primary
idiopathic epilepsy
2
: peculiar to the individual
idiopathically adverb

Did you know?

Idiopathic joins the combining form idio- (from Greek idios, meaning "one's own" or "private") with -pathic, a form that suggests the effects of disease. The combining form idio- is typically found in technical terms. Examples include idiographic, meaning "relating to or dealing with something concrete, individual, or unique"; idiolect, meaning "the language or speech pattern of one individual at a particular period of life"; and idiotype, meaning "the molecular structure and conformation of an antibody that confers its antigenic specificity." A more common idio- word is idiosyncrasy, which most commonly refers to an unusual way in which a person behaves or thinks, or to an unusual part or feature of something.

Examples of idiopathic in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The specific cause of peripheral neuropathy is sometimes unknown; this is referred to as idiopathic neuropathy. Ruth Jessen Hickman, Md, Health, 23 Dec. 2024 His death, in a hospital, was from the lung disease idiopathic pulmonary fibrosis, his family said in a statement. Jon Pareles, New York Times, 17 Dec. 2024 Duffy died Monday, a year after being diagnosed with idiopathic pulmonary fibrosis. Julie Hinds, Detroit Free Press, 17 Dec. 2024 Zakir Hussain, virtuoso of the tabla instrument and a towering figure in Indian classical music, died on Dec. 15 of chronic lung disease, idiopathic pulmonary fibrosis, at a hospital in San Francisco. Naman Ramachandran, Variety, 16 Dec. 2024 See all Example Sentences for idiopathic 

Word History

First Known Use

1669, in the meaning defined at sense 1

Time Traveler
The first known use of idiopathic was in 1669

Podcast

Dictionary Entries Near idiopathic

Cite this Entry

“Idiopathic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/idiopathic. Accessed 5 Jan. 2025.

Medical Definition

idiopathic

adjective
id·​io·​path·​ic ˌid-ē-ə-ˈpath-ik How to pronounce idiopathic (audio)
: arising spontaneously or from an obscure or unknown cause : primary
idiopathic epilepsy
idiopathic thrombocytopenic purpura
idiopathically adverb

More from Merriam-Webster on idiopathic

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!