Definition of 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
• of things that make you feel sad; "sad news"; "she doesnt like sad movies"; "it was a very sad story"; "When I am dead, my dearest, / Sing no sad songs for me"- Christina Rossetti
• bad; unfortunate; "my finances were in a deplorable state"; "a lamentable decision"; "her clothes were in sad shape"; "a sorry state of affairs"