64 synonyms for sad such as cheerless, blue, agonizing, and awful. Sad is an adjective, and its antonyms are happy, cheerful, and amusing.
Blue, bowed down, broken-hearted, crestfallen, dejected, depressed, desolate, despairing, despondent, disconsolate, dismal, doleful, down, down in the dumps, down in the mouth, downcast, downhearted, forlorn, gloomy, glum, grief-stricken, heartbroken, inconsolable, low-spirited, melancholic, melancholy, miserable, mournful, out of sorts, regretful, sorrowful, unhappy, woebegone, woeful, and wretched.
Agonizing, awful, cheerless, deplorable, depressing, disgraceful, dispiriting, distressful, distressing, grievous, harrowing, heart-rending, heartbreaking, lamentable, miserable, pathetic, pitiable, pitiful, regrettable, shameful, sorrowful, sorry, tragic, traumatic, unfortunate, unhappy, upsetting, and wretched.