THESAURUS
regrettable
abominable, affecting, afflictive, arrant, atrocious, awful, base, beastly, beneath contempt, bitter, blameworthy, bleak, brutal, calamitous, cheerless, comfortless, contemptible, deplorable, depressing, depressive, despicable, detestable, dire, discomforting, disgusting, dismal, dismaying, distressful, distressing, dolorific, dolorogenic, dolorous, dreadful, dreary, egregious, enormous, execrable, fetid, filthy, flagrant, foul, fulsome, grievous, gross, hateful, heartbreaking, heinous, horrible, horrid, infamous, joyless, lamentable, loathsome, lousy, monstrous, mournful, moving, nasty, nefarious, noisome, notorious, obnoxious, odious, offensive, outrageous, painful, pathetic, piteous, pitiable, pitiful, poignant, rank, reprehensible, repulsive, rotten, rough, rueful, sad, saddening, scandalous, schlock, scurvy, shabby, shameful, shaming, sharp, shocking, shoddy, sordid, sore, sorrowful, squalid, terrible, too bad, touching, tough, unclean, uncomfortable, unfortunate, unhappy, unlucky, upsetting, vile, villainous, woebegone, woeful, worst, worthless, wretched, wrong
ROGET THESAURUS
regrettable
Regret
N
regret, repining, homesickness, nostalgia, mal du pays, maladie, lamentation, penitence, bitterness, heartburning, recrimination (accusation), laudator temporis acti, regretting, regretful, homesick, regretted, much to be regretted,
regrettable, lamentable, regrettably, unfortunately, most unfortunately, Int, alas!, what a pity!, hang it!, 'tis pity, 'tis too true, sigh'd and look'd and sigh'd again, I'm sorry.