precarious
🇺🇸
/prɪˈkeriəs/
🇬🇧
/prɪˈkeəriəs/
when something is not secure and might very easily or quickly become worse
Their financial situation is pretty precarious.
彼らの財政状態はかなり不安定です。
easy to fall or collapse and possibly cause danger
The shelf is loaded with heavy books and is quite precarious.
棚は重い本でいっぱいで、かなり不安定です。