wasteful of編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看wasteful ofwasteful of — 形容詞形容詞1. using something carelessly or inefficiently, resulting in waste1.形容詞釋義浪費using something carelessly or inefficiently, resulting in waste例句She is wasteful of time by browsing social media all day.