Word Study
unacceptable
CIDE DICTIONARY
unacceptable, a.
Not acceptable; not pleasing; not welcome; unpleasant; disagreeable; displeasing; offensive. [1913 Webster]
OXFORD DICTIONARY
unacceptable, adj. not acceptable.
Derivative
unacceptableness n. unacceptably adv.
THESAURUS
unacceptable
bad, disagreeable, discommendable, distasteful, exceptionable, ill-favored, illaudable, impossible, improper, inadmissible, inappropriate, indefensible, intolerable, objectionable, tasteless, unagreeable, unallowable, unasked, unbidden, uncommendable, undesirable, uninvited, unpleasant, unpraiseworthy, unsatisfactory, unsuitable, untenable, unwanted, unwelcome, wrongROGET THESAURUS
unacceptable
Painfulness
N painfulness, trouble, care, trial, affliction, infliction, blow, stroke, burden, load, curse, bitter pill, bitter draught, waters of bitterness, annoyance, grievance, nuisance, vexation, mortification, sickener, bore, bother, pother, hot water, sea of troubles, hornet's nest, plague, pest, cancer, ulcer, sting, thorn, canker, scorpion, dagger, scourge, carking care, canker worm of care, mishap, misfortune, desagrement, esclandre, rub, source of irritation, source of annoyance, wound, open sore, sore subject, skeleton in the closet, thorn in the flesh, thorn in one's side, where the shoe pinches, gall and wormwood, sorry sight, heavy news, provocation, affront, head and front of one's offending, infestation, molestation, malignity, causing pain, hurting, hurtful, painful, dolorific, dolorous, unpleasant, unpleasing, displeasing, disagreeable, unpalatable, bitter, distasteful, uninviting, unwelcome, undesirable, undesired, obnoxious, unacceptable, unpopular, thankless, unsatisfactory, untoward, unlucky, uncomfortable, distressing, afflicting, afflictive, joyless, cheerless, comfortless, dismal, disheartening, depressing, depressive, dreary, melancholy, grievous, piteous, woeful, rueful, mournful, deplorable, pitiable, lamentable, sad, affecting, touching, pathetic, irritating, provoking, stinging, annoying, aggravating, mortifying, galling, unaccommodating, invidious, vexatious, troublesome, tiresome, irksome, wearisome, plaguing, plaguy, awkward, importunate, teasing, pestering, bothering, harassing, worrying, tormenting, carking, intolerable, insufferable, insupportable, unbearable, unendurable, past bearing, not to be borne, not to be endured, more than flesh and blood can bear, enough to drive one mad, enough to provoke a saint, enough to make a parson swear, enough to gag a maggot, shocking, terrific, grim, appalling, crushing, dreadful, fearful, frightful, thrilling, tremendous, dire, heart-breaking, heart-rending, heart-wounding, heart-corroding, heart-sickening, harrowing, rending, odious, hateful, execrable, repulsive, repellent, abhorrent, horrid, horrible, horrific, horrifying, offensive, nauseous, nauseating, disgusting, sickening, revolting, nasty, loathsome, loathful, fulsome, vile, hideous, sharp, acute, sore, severe, grave, hard, harsh, cruel, biting, caustic, cutting, corroding, consuming, racking, excruciating, searching, grinding, grating, agonizing, envenomed, catheretic, pyrotic, ruinous, disastrous, calamitous, tragical, desolating, withering, burdensome, onerous, oppressive, cumbrous, cumbersome, painfully, with pain, deuced, Int, hinc illae lachrymae!, surgit amari aliquid, the place being too hot to hold one, the iron entering into the soul, he jests at scars that never felt a wound, I must be cruel only to be kind, what deep wounds ever closed without a scar?.For further exploring for "unacceptable" in Webster Dictionary Online