cavalierly

/ˌkævəˈlɪrli/
adverb
  1. In a way that shows a lack of concern or respect for something important.
    • He cavalierly ignored the deadline, assuming he could finish later.
    • The manager cavalierly rejected the team's suggestions without listening.
    • She cavalierly dismissed the safety concerns, saying nothing would go wrong.
What does "cavalierly" mean? | whatsthatwordmean | whatsthatwordmean