inexperience
🇺🇸
/ˌɪnɪkˈspɪriəns/
🇬🇧
/ˌɪnɪkˈspɪəriəns/
Not having enough knowledge or experience in a particular area.
Due to his inexperience, he made several mistakes during the presentation.
彼の未熟さのために、プレゼンテーション中にいくつかのミスを犯しました。