noun🔗Share真剣さ, 誠実さThe quality of being earnest; sincerity; seriousness."Her earnestness during the presentation convinced the boss to approve the new project. "プレゼンテーション中の彼女の真剣さが、上司に新しいプロジェクトを承認させることになった。characterqualityattitudemoralemotionbeingmindChat with AIVocabulary GamePractice Reading
