unconcernedly
🇺🇸
/ˌʌnkənˈsɜːrnɪdli/
🇬🇧
/ˌʌnkənˈsɜːnɪdli/
adverb
R
not worried or bothered by something because it seems unimportant
He unconcernedly continued reading the newspaper, unaware of the chaos around him.
彼は周りの混乱に気付くことなく、無関心に新聞を読み続けた。
translation
平然と