thoughtlessKK [ˋθɔtləs] /ˈθɔtləs/發音形容詞1不體貼的、不顧他人的、自私的貶義It was thoughtless of him to leave without thanking his hosts.他沒向主人道謝就離開,實在不夠體貼。2輕率的、草率的、欠考慮的One thoughtless remark can ruin an entire friendship.一句輕率的話就可能毀掉一段友誼。3漫不經心的、不經思索的She gave a thoughtless nod and kept staring out the window.她漫不經心地點了個頭,繼續望著窗外。