wastefulKK [ˋwestfəl] /ˈweɪstfəl/形容詞1浪費的、揮霍的Throwing away so much food every day is incredibly wasteful.每天丟掉這麼多食物實在非常浪費。2不經濟的、耗費資源的The old heating system is wasteful and expensive to run.這套舊的暖氣系統既耗能又花錢。3奢侈的、大手大腳的形容人He was criticized for his wasteful spending habits.他因為花錢大手大腳的習慣而受到批評。