self-assured
US /ˌself əˈʃʊrd/
UK /ˌself əˈʃʊrd/
1.
自信に満ちた, 確信している
confident in one's own abilities or character
:
•
She walked into the room with a self-assured smile.
彼女は自信に満ちた笑顔で部屋に入ってきた。
•
His calm and self-assured demeanor impressed everyone.
彼の落ち着いて自信に満ちた態度は皆を感心させた。