Definition for Disastrous:

• Attended with suffering or disaster; very unfortunate; calamitous; ill-fated; ending in utter failure or ruin; as, a disastrous day; a disastrous termination of an undertaking.

Synonyms for Disastrous:

• adj.

  •adverse (adjective)
  • adverse,
  • unfriendly,
  • distressful,
  • calamitous,
  • unlucky,
  • woeful,
  • miserable,
  • untoward,
  • inauspicious,
  • difficult,
  • unfortunate,
  • perilous,
  • detrimental,
  • burdensome,
  • opposing,
  • troublesome,
  • tragic,
  • hard,
  • antipathetic,
  • catastrophic,
  • unfavorable,
  • unpropitious,
  • grievous.
  •bad (adjective)
  • painful.
  •deplorable (adjective)
  • wretched,
  • opprobrious.
  •destructive (adjective)
  • ruinous,
  • cataclysmal,
  • damaging,
  • calamitous,
  • harmful,
  • deadly,
  • injurious,
  • destructive,
  • detrimental,
  • cataclysmic,
  • deleterious,
  • Wreckful,
  • catastrophic,
  • devastating.
  •detrimental, devastating (adjective)
  • adverse,
  • unfavorable,
  • dreadful,
  • cataclysmic,
  • unfortunate,
  • untoward,
  • harmful,
  • unpropitious,
  • hapless,
  • dire,
  • tragic,
  • ill-starred,
  • destructive,
  • cataclysmal,
  • ill-fated,
  • ruinous,
  • luckless,
  • fateful,
  • calamitous,
  • catastrophic,
  • terrible,
  • unlucky,
  • fatal.
  •evil (adjective)
  • unpropitious.
  •failing (adjective)
  • unsuccessful.
  •fateful (adjective)
  • hellfire.
  •harmful (adjective)
  • mischievous.
  •severe (adjective)
  • bad.
  •unsuccessful (adjective)
  • bungled,
  • ailing,
  • unsuccessful,
  • barren,
  • manque,
  • abortive,
  • unproductive,
  • bottom,
  • washed-up,
  • unavailing.

• n.

  •
  • unsafe,
  • dangerous.
  •
  • ruinous,
  • cataclysmic,
  • cataclysmal.
  •calamitous (noun)
  • ruinous.
  •disastrous (noun)
  • calamitous,
  • fateful,
  • fatal,
  • unfortunate,
  • black.

• v.

  •defeated (verb)
  • unsuccessful.

• Other synonyms:

  •
  • noxious,
  • lethal,
  • suicidal,
  • mortally,
  • pernicious,
  • treacherous,
  • marauding,
  • unsafe,
  • prejudicial,
  • threatening,
  • precarious,
  • kamikaze,
  • cataclysmal,
  • dangerously,
  • dangerous,
  • cataclysmic,
  • malign.
  •
  • ferocious,
  • convulsive,
  • hostile,
  • poisonous,
  • ill,
  • glowering.
  •
  • seriously,
  • serious,
  • suspect,
  • mortal.
  •
  • nasty.
  •
  • negative.
  •
  • hot.
  •discouraging
  • hopeless.
  •ill-starred
  • ill-fated.
  •unpropitious
  • evil.
  •unwelcome
  • terrible.
  •Other relevant words:
  • ominous,
  • serious,
  • heart-rending,
  • bottom,
  • tough,
  • ill-chosen,
  • dismal,
  • horrifying,
  • toxic,
  • seriously,
  • disadvantageous,
  • morose,
  • devastative,
  • doa,
  • greatly,
  • dim,
  • upsetting,
  • disturbing,
  • ill-starred,
  • duly,
  • highly,
  • cursed,
  • unavailing,
  • terrible,
  • dreadfully,
  • luckless,
  • unhappy,
  • rough,
  • nasty,
  • significantly,
  • Wreckful,
  • heavily,
  • Desolating,
  • distressing,
  • consuming,
  • cumbrous,
  • forlorn,
  • terribly,
  • Doomful,
  • consumptive,
  • heartily,
  • ill,
  • liberally,
  • desperate,
  • marauding,
  • depressing,
  • immensely,
  • kamikaze,
  • nihilist,
  • unluckily,
  • pitch-dark,
  • evil,
  • minatory,
  • lethal,
  • inglorious,
  • fearfully,
  • exceptionally,
  • lamentable,
  • ill-omened,
  • dreadful,
  • substantially,
  • poignant,
  • Vandalic,
  • generously,
  • malignant,
  • sinister,
  • abortive,
  • ruinous,
  • horrendous,
  • heartrending,
  • appalling,
  • hurtful,
  • correctly,
  • internecine,
  • hateful,
  • raven,
  • unpromising,
  • infinitely,
  • disgraceful,
  • awful,
  • seismic,
  • extremely,
  • pernicious,
  • obnoxious,
  • hapless,
  • unusually,
  • poorly,
  • particularly,
  • vastly,
  • herky-jerky,
  • baleful,
  • dangerously,
  • quite,
  • poor person,
  • portentous,
  • self-destructive,
  • awfully,
  • racking,
  • convulsive,
  • ill-fated,
  • suspect,
  • washed-up,
  • enormously,
  • awry,
  • unsuccessful,
  • unproductive,
  • cataclysmal,
  • pitiful,
  • bungled,
  • crushing,
  • shocking,
  • mortal,
  • treacherous,
  • considerably,
  • importantly,
  • prejudicial,
  • noxious,
  • cheerless,
  • ruining,
  • unsuccessfully,
  • moving,
  • oppressive,
  • grave,
  • pathetic,
  • melancholy,
  • unpleasant,
  • glowering,
  • unsafe,
  • good deal,
  • desperately,
  • sorrowful,
  • severe,
  • remarkably,
  • funereal,
  • foreboding,
  • predetermined,
  • spastic,
  • malign,
  • blue,
  • excruciating,
  • hostile,
  • ineffective,
  • Star-crossed,
  • excessively,
  • onerous,
  • shockingly,
  • deplorable,
  • horrible,
  • mischievous,
  • minacious,
  • ignominious,
  • severely,
  • harrowing,
  • soundly,
  • mortally,
  • achromatic,
  • smutty,
  • nihilistic,
  • Subversionary,
  • barren,
  • bleak,
  • mordant,
  • widely,
  • iii,
  • soberly,
  • badly,
  • black,
  • unwholesome,
  • bad,
  • terrific,
  • terrifically,
  • cataclysmic,
  • dire,
  • mightily,
  • lachrymose,
  • sternly,
  • tragical,
  • deathly,
  • agonizing,
  • bootleg,
  • painful,
  • poor,
  • hugely,
  • virulent,
  • hot,
  • properly,
  • dolorous,
  • lugubrious,
  • troubling,
  • out of joint,
  • Depredatory,
  • exceedingly,
  • withering,
  • negative,
  • demolitionary,
  • orgasmic,
  • Fratricidal,
  • disheartening,
  • pitch black,
  • Annihilatory,
  • upheaving,
  • infelicitous,
  • frightfully,
  • sad,
  • suicidal,
  • baneful,
  • regrettable,
  • touching,
  • unfortunately,
  • shameful,
  • vandalistic,
  • gravely,
  • contraband,
  • hellfire,
  • mournful,
  • fateful,
  • tremendously,
  • ailing,
  • bitter,
  • unfavourable,
  • spasmodic,
  • piteous,
  • jerky,
  • opprobrious,
  • wasteful,
  • dangerous,
  • threatening,
  • heart-breaking,
  • wasting,
  • demolishing,
  • terminal,
  • earnestly,
  • dark,
  • Destroying,
  • manque,
  • saddening,
  • hardly,
  • very much,
  • pitiable,
  • crippling,
  • paroxysmal,
  • jinxed,
  • bringing ruin,
  • wretched,
  • uncommonly,
  • austere,
  • poisonous,
  • cumbersome,
  • profoundly,
  • fatal,
  • ravaging,
  • precarious,
  • ferocious,
  • very,
  • gloomy,
  • subversive,
  • hopeless,
  • blackened,
  • most,
  • deeply,
  • disasterous,
  • grim,
  • menacing.

Antonyms for Disastrous:

• adj.

  • detrimental, devastating
    healthful, trivial, advantageous, helpful, lucky, life-giving, fortunate, happy, nice, Aiding, prosperous, wondrous, triumphant, good, successful, winning, miraculous, wonderful, favorable, blessed, Assisting, unimportant.
  • Other antonyms:
    productive, healthful, healthy, fair, preservative, formative, useful, encouraging, innocuous, salubrious, harmless, wholesome, constructive, creative, innocent, rosy, optimistic, nonlethal, nonfatal, protective, upbeat, inoffensive, rose-colored, nondestructive, helpful, ameliorative.

• Other antonyms:

  • n. t.
    advantageous, ameliorative, beneficial, blessed, constructive, creative, fair, favourable, formative, good, harmless, healthful, healthy, helpful, innocent, innocuous, inoffensive, life-giving, nice, nonfatal, nonlethal, preservative, productive, prosperous, protective, rose-colored, rosy, salubrious, successful, triumphant, trivial, unimportant, upbeat, useful, wholesome, winning, wonderful, wondrous, Aiding, Assisting, nondestructive.