waste·ful /ˈweɪstfəl/ ●○○ adjectiveadj WASTE somethingusing more of something than you should, especially money, time, or effort 挥霍的;浪费的〔尤指金钱、时间或努力〕 OPP economical a wasteful use of resources 滥用资源
wasteful of The software is very wasteful of memory. 这个软件很占内存。
—wastefully adverbadv Lily had wastefully left the light on. 莉莉让电灯开着,真浪费。
—wastefulness noun [uncountableU]