feeling or expressing regret or sorrow or a sense of loss over something done or undone
Felt regretful over his vanished youth. Regretful over mistakes she had made. He felt bad about breaking the vase.
source: WordNet 3.0
Grieved for the loss of some good; pained for some evil; feeling regret; -- now generally used to express light grief or affliction, but formerly often used to express deeper feeling.
source: Webster 1913
adjective satellite
bad; unfortunate
My finances were in a deplorable state. A lamentable decision. Her clothes were in sad shape. A sorry state of affairs.
source: WordNet 3.0
without merit
A sorry horse. A sorry excuse. A lazy no-count, good-for-nothing goldbrick. The car was a no-good piece of junk.
source: WordNet 3.0
causing dejection
A blue day. The dark days of the war. A week of rainy depressing weather. A disconsolate winter landscape. The first dismal dispiriting days of November. A dark gloomy day. Grim rainy weather.