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.
他意識到自己虛度的青春讓他失去了寶貴的機會。