idiosyncratic
adjective/ˌɪdiəsɪŋˈkrætɪk/
/ˌɪdiəsɪŋˈkrætɪk/
- unusual and particular to a person or thing
- His teaching methods are idiosyncratic but successful.
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idiosyncratic
Definition of idiosyncratic adjective from the Oxford Advanced Learner's Dictionary