Causing fear or dread or terror:
— A dreadful storm.

synonyms: awful, dire, direful, dread, dreaded, fearful, fearsome, frightening, horrendous, horrific, terrible ... show more.

Roget 860: fearing etc. v.; frightened etc. v.; in fear, in a fright etc. n.; haunted with the fear of etc. n.; afeard^†.    afraid, fearful; timid, timorous; nervous, diffident, coy, faint-hearted, tremulous, shaky, afraid of one's shadow, apprehensive, restless, fidgety; more frightened than hurt.    aghast; awe-stricken, horror-stricken, terror-stricken, panic-stricken, awestruck, awe-stricken, horror-struck; frightened to death, white as a sheet; pale, pale as a ghost, pale as death, pale as ashes; breathless, in hysterics.    inspiring fear etc. v.; alarming; formidable, redoubtable; perilous etc. (danger) 665; portentous; fearful; dread, dreadful; fell; dire, direful; shocking; terrible, terrific; tremendous; horrid, horrible, horrific; ghastly; awful, awe-inspiring; revolting etc. (painful) 830; Gorgonian.    ... show more

Roget 649: hurtful, harmful, scathful^†, baneful, baleful; injurious, deleterious, detrimental, noxious, pernicious, mischievous, full of mischief, mischief-making, malefic, malignant, nocuous, noisome; prejudicial; disserviceable^†, disadvantageous; wide-wasting.    unlucky, sinister; obnoxious; untoward, disastrous.    oppressive, burdensome, onerous; malign etc. (malevolent) 907.    corrupting etc. (corrupt) etc. 659; virulent, venomous, envenomed, corrosive; poisonous etc. (morbific) 657^†; deadly etc. (killing) 361; destructive etc. (destroying) 162; inauspicious etc. 859.    bad, ill, arrant, as bad as bad can be, dreadful; horrid, horrible; dire; rank, peccant, foul, fulsome; rotten, rotten at the core.    vile, base, villainous; mean etc. (paltry) 643; injured &c.; deteriorated etc. 659; unsatisfactory, exceptionable indifferent; below par etc. (imperfect) 651; illcontrived, ill-conditioned; wretched, sad, grievous, deplorable, lamentable; pitiful, pitiable, woeful etc. (painful) 830.    evil, wrong; depraved etc. 945; shocking; reprehensible etc. (disapprove) 932.    hateful, hateful as a toad; abominable, detestable, execrable, cursed, accursed, confounded; damned, damnable; infernal; diabolic etc. (malevolent) 907.    unadvisable etc. (inexpedient) 647; unprofitable etc. (useless) 645; incompetent etc. (unskillful) 699; irremediable etc. (hopeless) 859.    ... show more

Roget 830: causing pain, hurting etc. v.; hurtful etc. (bad) 649; 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 etc. (bad) 649; hideous etc. 846.    sharp, acute, sore, severe, grave, hard, harsh, cruel, biting, caustic; cutting, corroding, consuming, racking, excruciating, searching, grinding, grating, agonizing; envenomed; catheretic^†, pyrotic [Med.].    ruinous, disastrous, calamitous, tragical; desolating, withering; burdensome, onerous, oppressive; cumbrous, cumbersome.    ... show more

Roget 837: cheerless, joyless, spiritless; uncheerful, uncheery^†; unlively^†; unhappy etc. 828; melancholy, dismal, somber, dark, gloomy, triste [Fr.], clouded, murky, lowering, frowning, lugubrious, funereal, mournful, lamentable, dreadful.    dreary, flat; dull, dull as a beetle, dull as ditchwater^†; depressing etc. v.. melancholy as a gib cat;" oppressed with melancholy, a prey to melancholy; downcast, downhearted; down in the mouth, down in one's luck; heavy-hearted; in the dumps, down in the dumps, in the suds, in the sulks, in the doldrums; in doleful dumps, in bad humor; sullen; mumpish^†, dumpish, mopish^†, moping; moody, glum; sulky etc. (discontented) 832; out of sorts, out of humor, out of heart, out of spirits; ill at ease, low spirited, in low spirits, a cup too low; weary etc. 841; discouraged, disheartened; desponding; chapfallen^†, chopfallen^†, jaw fallen, crest fallen.    sad, pensive, penseroso [It], tristful^†; dolesome^†, doleful; woebegone; lacrymose, lachrymose, in tears, melancholic, hypped^†, hypochondriacal, bilious, jaundiced, atrabilious^†, saturnine, splenetic; lackadaisical.    serious, sedate, staid, stayed; grave as a judge, grave as an undertaker, grave as a mustard pot; sober, sober as a judge, solemn, demure; grim; grim-faced, grim-visaged; rueful, wan, long-faced.    disconsolate; unconsolable, inconsolable; forlorn, comfortless, desolate, desole [Fr.], sick at heart; soul sick, heart sick; au desespoir [Fr.]; in despair etc. 859; lost.    overcome; broken down, borne down, bowed down; heartstricken etc. (mental suffering) 828^†; cut up, dashed, sunk; unnerved, unmanned; down fallen, downtrodden; broken-hearted; careworn.    ... show more

Polish: okropny, straszny

Exceptionally bad or displeasing:
— Dreadful manners.

synonyms: abominable, atrocious, awful, painful, terrible, unspeakable.

Extremely disagreeable and unpleasant.