List of grievous synonyms and grievous related words.
abominable, acute, affecting, afflictive, aggrieved, anguished, appalling, arrant, atrocious, awful, base, beastly, beneath contempt, bitter, black, blameworthy, bleak, brutal, burdensome, calamitous, careworn, cataclysmal, cataclysmic, catastrophic, cheerless, comfortless, contemptible, damaging, dangerous, demanding, deplorable, depressing, depressive, despicable, destructive, detestable, dire, disastrous, discomforting, disgusting, dismal, dismaying, distasteful, distressful, distressing, doleful, dolorific, dolorogenic, dolorous, dreadful, dreary, dumb with grief, egregious, enormous, exacting, exigent, fatal, fell, fetid, filthy, flagrant, foul, fulsome, galling, grave, grief-stricken, griefful, grieved, gross, harmful, hateful, heartbreaking, heartrending, heavy, heinous, horrible, horrid, hurtful, in grief, infamous, intolerable, joyless, lamentable, loathsome, lousy, lugubrious, major, monstrous, mournful, moving, nasty, nefarious, noisome, notorious, obnoxious, odious, offensive, oppressive, outrageous, painful, pathetic, piteous, pitiable, pitiful, plaintive, plangent, plunged in grief, poignant, rank, regrettable, reprehensible, repulsive, rotten, rueful, ruinous, sad, saddening, scandalous, schlock, scurvy, serious, severe, shabby, shameful, sharp, shocking, shoddy, sordid, sore, sorrowed, sorrowful, sorrowing, squalid, superincumbent, taxing, tearful, terrible, too bad, touching, tough, tragic, ugly, unbearable, unclean, uncomfortable, unfortunate, unpalatable, vile, villainous, weighty, woebegone, woeful, worst, worthless, wounding, wreckful, wretched