irresponsibly

/ˌɪrɪˈspɑnsəbli/
adverb
  1. In a manner that shows a lack of responsibility or concern for consequences.
    • She spent her entire paycheck irresponsibly on luxury items.
    • He acted irresponsibly by driving after drinking alcohol.
    • The company irresponsibly dumped toxic waste into the river.
Antonyms
What does "irresponsibly" mean? | whatsthatwordmean | whatsthatwordmean