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Synonyms

idiosyncratic

American  
[id-ee-oh-sin-krat-ik, -sing-] / ˌɪd i oʊ sɪnˈkræt ɪk, -sɪŋ- /

adjective

  1. An image of the word idiosyncratic as defined by pertaining to the nature of idiosyncrasy, or something peculiar to an individual.

    pertaining to the nature of idiosyncrasy, or something peculiar to an individual.

    The best minds are idiosyncratic and unpredictable as they follow the course of scientific discovery.


idiosyncratic British  
/ ˌɪdɪəʊsɪŋˈkrætɪk /

adjective

  1. of or relating to idiosyncrasy; characteristic of a specific person

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms


Etymology

Origin of idiosyncratic

First recorded in 1750–60; equivalent to idio- ( def. ) + Greek sýnkrat(os) “closely united” + -ic ( def. ); cf. syn- ( def. ), crater


Explanation

Idiosyncratic means unique to an individual. Albert Einstein famously had lots of idiosyncratic habits. For example, he rarely wore socks, and he talked to his cat. One thing that Einstein definitely wasn't was an idiot. Yet idiosyncratic and idiot are related. Idio is ancient Greek for "one's own." An idiosyncratic person is someone who does things in his own way. And the original meaning of idiot was basically "a regular Joe" — an ordinary person who keeps to himself.

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Vocabulary lists containing idiosyncratic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Much has been made of Winter’s idiosyncratic star power, and as an extremely tall, wet-dog-handsome instrumental virtuoso with a one-of-a-kind voice and just enough self-aware wit and lacerating lyricism to keep it relatable, that’s indisputable.

From Los Angeles Times ● Oct. 16, 2026

It was probably a foregone conclusion that the six Mitford sisters would grow up to be women of distinct character, given their idiosyncratic upbringing in the English countryside between the two world wars.

From The Wall Street Journal ● Oct. 15, 2026

He likes to think they’re laughing along with the idiosyncratic elements of the movies, and as long as it is creating a communal atmosphere, Oliver is all for it.

From Los Angeles Times ● Sep. 25, 2026

We all also have plenty of celebrities with idiosyncratic features who nonetheless have the confidence and quelque chose de spécial that makes them irresistible to many.

From Salon ● Sep. 13, 2026

“Many people have a hobby…. The difference between the normal range and the eccentricity observed in Asperger’s Syndrome is that these pursuits are often solitary, idiosyncratic and dominate the person’s time and conversation.”

From "The Big Short" by Michael Lewis

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