1. (adj)sad experiencing or showing sorrow or unhappiness
"feeling sad because his dog had died"; "Better by far that you should forget and smile / Than that you should remember and be sad"- Christina Rossetti
2. (adj)sad of things that make you feel sad
"sad news"; "she doesn't like sad movies"; "it was a very sad story"; "When I am dead, my dearest, / Sing no sad songs for me"- Christina Rossetti
3. (adj)deplorable, distressing, lamentable, pitiful, sad, sorry bad; unfortunate
"my finances were in a deplorable state"; "a lamentable decision"; "her clothes were in sad shape"; "a sorry state of affairs"