► sadnot happy, especially because something bad has happened to you or someone else:  The children talk about what makes them sad.
► unhappy not happy. Used when you are sad because something bad has happened or because you are in a situation you do not like:  I’m unhappy in my job, but I don’t know what to do about it. She was deeply unhappy for months after her marriage ended.
► upset sad and disappointed or angry, usually about something that is not too serious:  Rosa is still very upset about the argument with her sister.
► depressed sad for a long time because things are wrong in your life or because you have a medical condition:  He got very depressed after he lost his job.
► miserable very sad, especially because you are lonely or sick:  I had no friends in high school and was miserable most of the time.
► heartbroken very sad because someone or something you love is gone, has died, etc.:  Holly was heartbroken when her dog died.
► distraught so upset that you cannot think clearly or behave calmly:  Her husband was distraught when she left him.
► homesick sad because you are away from your home, family, and friends:  Many students get homesick in their first year at college.
► gloomy sad because you think a situation will not improve:  Don’t be so gloomy – things will get better!
► glum looking sad:  He sat staring out the window with a glum look on his face.
► downhearted literary sad about something that has happened:  A friendly word can mean a lot to someone who is downhearted.
► down/low informal a little sad about things in your life:  Whenever I felt down, I’d read his letter.
► melancholy formal sad and slightly depressed. Used especially in writing and literature:  She grew increasingly melancholy and difficult to be around.
► morose formal unhappy, silent, and in a bad mood:  She was morose, and he could do nothing to cheer her up.
► sorrowful formal used to describe expressions, sounds, songs, etc. that show that you are very sad:  He gave a small, sorrowful smile, turned and walked slowly away.