decorative 2023.03.13 decorativeとは 意味・定義・例文 Adjective 形容詞 デクらティヴ US /ˈdɛkrətɪv/ UK /ˈdɛkərətɪv/ 1. making something look more attractive or beautiful 装飾的な All these books are to be used for purely decorative purposes.