misspent
🇺🇸
/ˌmɪsˈspent/
🇬🇧
/ˌmɪsˈspent/
Money or time that is spent in a way that is not useful or productive.
He realized that his misspent youth had cost him valuable opportunities.
他意识到自己虚度的青春让他失去了宝贵的机会。