precarious
🇺🇸
/prɪˈkeriəs/
🇬🇧
/prɪˈkeəriəs/
when something is not secure and might very easily or quickly become worse
Their financial situation is pretty precarious.
他們的財務狀況相當不穩定。
easy to fall or collapse and possibly cause danger
The shelf is loaded with heavy books and is quite precarious.
書架上擺滿了重書,非常不穩固。