ˌɪdijəˈsɪŋkrəsi
plural idiosyncrasies
1
: an unusual way in which a particular person behaves or thinks
Her habit of using "like" in every sentence was just one of her idiosyncrasies.
2
: an unusual part or feature of something
The current system has a few idiosyncrasies.
Cite this Entry
“Idiosyncrasy.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/idiosyncrasy. Accessed 15 Apr. 2026.
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