sadKK [ˋsæd] /ˈsæd/形容詞1悲傷的、難過的、傷心的She looked sad after reading the letter from her old friend.她讀完老朋友的來信後,看起來很難過。2令人難過的、悲哀的It's a sad story, but it does have a happy ending.這是個令人難過的故事,不過結局是好的。3令人遺憾的、可惜的The sad truth is that nobody wants to take responsibility.令人遺憾的事實是,沒有人願意負起責任。4差勁的、可悲的、遜的口語,貶義Spending your whole weekend complaining online is pretty sad.整個週末都在網路上抱怨,實在有點可悲。