noun ダウンロード 🔗共有 決断力, 断固たる態度 The state or quality of being decisive. Examples : "His decisiveness was evident in the way he quickly chose his college major. " 彼の決断力は、彼が専攻をすぐに選んだ方法に明らかだった。 quality character ability mind AIとチャット語彙ゲーム読解練習