foolishness
🇺🇸
/ˈfuːlɪʃnəs/
🇬🇧
/ˈfuːlɪʃnəs/
acting without thinking or making poor decisions
Jenny had to laugh at her own foolishness when she realized she had left her phone at home.
ジェニーは自分の愚かさを家に携帯を忘れたことに気づき、笑わなければならなかった。