insouciant
🇺🇸
/ɪnˈsuːsiənt/
🇬🇧
/ɪnˈsuːsiənt/
Calm and relaxed, not worried or concerned about anything.
Despite the storm, she remained insouciant and continued her work.
尽管有暴风雨,她依然无忧无虑地继续她的工作。