nonchalantly
🇺🇸
/ˌnɑːnʃəˈlɑːntli/
🇬🇧
/ˈnɒnʃələntli/
adverb
R
in a way that shows you are not worried or excited about something
She walked nonchalantly through the park, not caring about the rain.
彼女は雨にかかわらず、気軽に公園を歩きながら、
translation
のんびりと