sorry
adjective
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”
bad; unfortunate
“my finances were in a deplorable state”
“a lamentable decision”
without merit; of little or no value or use
“a sorry horse”
“a sorry excuse”
causing dejection
“a blue day”
“the dark days of the war”
Source: WordNet 3.1, Princeton University