WordNet sense 1 (without merit):

good-for-nothing, no-account, no-good, good-for-naught, meritless, no-count

WordNet sense 2 (lacking in usefulness or value):

worthless

WordNet sense 3 (feeling or expressing regret or sorrow or a sense of loss over something done or undone):

regretful

WordNet sense 4 (bad; unfortunate):

deplorable, distressing, lamentable, pitiful, sad

WordNet sense 5 (having undesirable or negative qualities):

bad

WordNet sense 6 (feeling or expressing sorrow or pity):

pitying

WordNet sense 7 (showing or having compassion):

compassionate

WordNet sense 8 (causing dejection):

blue, dark, depressing, dingy, disconsolate, dismal, drab, drear, dreary, gloomy, grim, dispiriting, dingy

WordNet sense 9 (lacking cheer; depressing):

cheerless, uncheerful