dreadful

1 causing fear a dreadful hurricane Synonyms alarming, dire, direful, dread, fearful, fearsome, forbidding, formidable, frightening, frightful, ghastly, hair-raising, horrendous, horrible, horrifying, intimidating, redoubtable, scary, shocking, spine-chilling, terrible, terrifyingRelated Words daunting, demoralizing, disconcerting, discouraging, dismaying, disquieting, distressing, disturbing, perturbing, startling, threatening, troubling, trying, unnerving; bone-chilling, creepy, eerie (also eery), weird; appalling, atrocious, awful, grisly, gruesome (also grewsome), hideous, horrid, macabre, monstrous, nightmarishNear Antonyms calming, comforting, consoling, inviting, lulling, pacifying, quieting, reassuring, relaxing, soothing, tranquilizing (also tranquillizing); nonintimidating, nonthreatening

2 causing intense displeasure, disgust, or resentment a dreadful performance of a beautiful piece of music Synonyms abhorrent, abominable, appalling, awful, disgusting, distasteful, offensive, evil, foul, fulsome, gross, hideous, horrendous, horrible, horrid, loathsome, nasty, nauseating, nauseous, noisome, noxious, obnoxious, obscene, odious, rancid, repellent (also repellant), repugnant, repulsive, revolting, scandalous, shocking, sickening, uglyRelated Words exceptionable, objectionable; brackish, disagreeable, dislikable (also dislikeable), unpleasant; contemptible, despicable, detestable, hard, hateful; unhealthy, unsavory, unwholesome; execrable, lousy, miserable; atrocious, frightful, ghastly, grim, grisly, gruesome (also grewsome), heinous, horrendous, horrific, horrifying, lurid, macabre, monstrous, nightmarish, shocking, sick, sickish, sickly, terrible, unspeakable, vile; off-putting, undesirable, unwanted, unwelcome; barbarous, unchristian, uncivilized, ungodly, unholy; distressing, disturbing, upsettingNear Antonyms acceptable, agreeable, alluring, appealing, attractive, blessed (also blest), congenial, darling, delectable, delicious, delightful, delightsome, desirable, dreamy, dulcet, enjoyable, felicitous, gratifying, heavenly, inviting, likable (or likeable), luscious, nice, palatable, pleasant, pleasing, pleasurable, satisfying, savory (also savoury), sweet, welcome; unexceptionable, unobjectionable; healthful, healthy, restorative, salubrious, salutary, wholesomeAntonyms innocuous, inoffensive

3 extremely disturbing or repellent dreadful news of a crime wave in the neighborhood Synonyms appalling, atrocious, awful, horrible, frightful, ghastly, grisly, gruesome (also grewsome), hideous, horrendous, horrid, horrific, horrifying, lurid, macabre, monstrous, nightmare, nightmarish, shocking, terrible, terrificRelated Words alarming, bloodcurdling, dire, direful, fearful, fearsome, forbidding, formidable, frightening, gut-wrenching, hair-raising, heart-stopping, intimidating, redoubtable, scary, terrifying; abhorrent, deplorable, disagreeable, disgusting, distasteful, loathsome, nauseating, noisome, obnoxious, obscene, offensive, repugnant, repulsive, revolting, sickening; abominable, evil, foul, heinous, noxious, odious, unspeakable, vile; grotesque, ugly, unsightlyNear Antonyms agreeable, appealing, attractive, delectable, delicious, delightful, enjoyable, enticing, inviting, pleasant, pleasing, pleasurable, satisfying, welcome; cheering, comforting, soothing

4 extreme in degree, power, or effect the dreadful heat of the desert Synonyms acute, almighty, blistering, deep, intense, excruciating, explosive, exquisite, fearful, fearsome, ferocious, fierce, frightful, furious, ghastly, hard, heavy, heavy-duty, hellacious, intensive, keen, profound, terrible, vehement, vicious, violentRelated Words accentuated, aggravated, concentrated, deepened; emphasized, enhanced, heightened, intensified, magnified; stressed; exhaustive, thorough; harsh, rigorous, severeNear Antonyms feeble, weak; shallow, superficial; moderated, qualified; alleviated, eased, lightened, toned (down); abated, decreased, diminished, lessened, reduced, subduedAntonyms light, moderate, soft

5 having no exceptions or restrictions made a dreadful mess of his first marriage Synonyms all-out, arrant, blank, blooming [chiefly British], bodacious [Southern & Midland], categorical (also categoric), clean, complete, consummate, cotton-picking, crashing, damn, damned, dead, deadly, definite, downright, absolute, fair, flat, flat-out, out-and-out, outright, perfect, plumb, profound, pure, rank, regular, sheer, simple, stark, stone, straight-out, thorough, thoroughgoing, total, unadulterated, unalloyed, unconditional, unmitigated, unqualified, utter, veryRelated Words authentic, classic, genuine, real, veritable; constant, endless, eternal, perpetual, undying, unremitting; extreme, unrestricted; confirmed, habitual, hopeless, inveterate; extraordinary, frightful, horrible, huge, main, superlative, supreme, surpassing, terrible, terrificNear Antonyms doubtful, dubious, equivocal, qualified, questionable, restricted, uncertain