idiosyncrasy
nounNAmE//ˌɪdiəˈsɪŋkrəsi//
(pl. idiosyncrasies) [countable, uncountable]NAmE//ˌɪdioʊsɪŋˈkræt̮ɪk//
adjective His teaching methods are idiosyncratic but successful.See idiosyncrasy in the Oxford Advanced Learner's DictionaryCheck pronunciation: idiosyncrasy