Main Entry: id·i·o·syn·cra·sy

Pronunciation: \ˌi-dē-ə-ˈsiŋ-krə-sē\

Function: noun

Inflected Form(s): plural id·i·o·syn·cra·sies

Etymology: Greek idiosynkrasia, from idio- + synkerannynai to blend, from syn- + kerannynai to mingle, mix — more at crater

Date: 1604

1 a : a peculiarity of constitution or temperament : an individualizing characteristic or quality b : individual hypersensitiveness (as to a drug or food)
2 : characteristic peculiarity (as of temperament); broadly : eccentricity

— id·i·o·syn·crat·ic \ˌi-dē-ō-(ˌ)sin-ˈkra-tik\ adjective

— id·i·o·syn·crat·i·cal·ly \-ˈkra-ti-k(ə-)lē\ adverb