unflappable
🇺🇸
/ˌʌnˈflæpəbl/
🇬🇧
/ˌʌnˈflæpəbl/
Remaining calm and not easily upset or excited, even in difficult situations.
Despite the unexpected interruption, she remained unflappable and continued with her presentation.
予期しない中断にもかかわらず、彼女は冷静でいて、発表を続けました。