What does "idiosyncratic" mean?

Peculiar to a specific individual; eccentric.

How do you pronounce "idiosyncratic"?

Pronounced //ˌɪd.i.əʊ.sɪŋˈkɹæt.ɪk//.

Common synonyms include: abnormal, anomalous, appropriate, characteristic, characterizing, connotative.

/ˌɪd.i.əʊ.sɪŋˈkɹæt.ɪk/ adj

adj ·Moderate ·High school level

Adjective

1
Peculiar to a specific individual; eccentric.
"At the time, I set it down to some idiosyncratic, personal distaste […] but I have since had reason to believe the cause to lie much deeper in the nature of man."

Adjective

"The idiosyncratic watch smith watched me from behind the window."

From idiosyncrasy + -ic. By surface analysis, idio- + syn- + -cratic.