irresponsible
🇺🇸
/ˌɪrɪˈspɑːnsəbl/
🇬🇧
/ˌɪrɪˈspɒnsəbl/
adjective
R
not careful about the results of your actions; not doing what you should do
Leaving children alone at home is irresponsible behavior.
子供を家に一人で残すことは無責任な行動です。
translation
無責任な