imprudence
🇺🇸
/ɪmˈpruːdns/
🇬🇧
/ɪmˈpruːdns/
acting without thinking about the results or not being careful
His decision to invest all his savings in a new business was an act of imprudence.
新しいビジネスに全貯金を投資するという彼の決定は、不注意な行為でした。