- 1a person's particular way of behaving, thinking, etc., especially when it is unusual; an unusual feature synonym eccentricity
- 2 Wearing a raincoat, even on a hot day, is one of her idiosyncrasies. The car has its little idiosyncrasies.
NAmE//ˌɪdiəˈsɪŋkrəsi//(pl. idiosyncrasies) [countable, uncountable]
idiosyncraticjump to other results
NAmE//ˌɪdioʊsɪŋˈkræt̮ɪk//adjective His teaching methods are idiosyncratic but successful.