idiosyncrasy
🇺🇸
/ˌɪdiəˈsɪŋkrəsi/
🇬🇧
/ˌɪdiəˈsɪŋkrəsi/
A special way someone behaves or thinks that is different from others.
One idiosyncrasy he has is wearing socks with sandals, even to formal events.
他有一个特质是即使去正式场合也要穿着袜子搭配凉鞋。