Definition for Fantastic:

• Imaginary; fanciful; unreal; full of absurd fancies; capricious.

Synonyms for Fantastic:

• adj.

  •all (adjective)
  • wild.
  •deceptive (adjective)
  • illusory,
  • delusive.
  •delusive (adjective)
  • seeming.
  •enormous (adjective)
  • prodigious,
  • monumental,
  • huge,
  • great,
  • humongous,
  • stupendous,
  • cracking,
  • severe,
  • towering,
  • monstrous,
  • massive,
  • tremendous,
  • overwhelming.
  •exaggerated (adjective)
  • sensational.
  •exceptional (adjective)
  • phenomenal,
  • Wonderous,
  • sensational,
  • outlandish,
  • remarkable,
  • unusual,
  • exceptional,
  • marvelous,
  • fabulous,
  • wonderful,
  • striking,
  • peculiar,
  • outstanding,
  • excellent,
  • novel,
  • extraordinary,
  • notable,
  • miraculous,
  • superior,
  • noteworthy,
  • exotic,
  • unprecedented.
  •fictitious (adjective)
  • invented,
  • figmental,
  • trumped-up,
  • cooked-up.
  •foolish (adjective)
  • loony,
  • tomfool,
  • imbecilic,
  • loopy.
  •illusive (adjective)
  • hallucinatory,
  • phantasmic,
  • phantasmagoric,
  • phantasmal.
  •imaginary (adjective)
  • suppositional,
  • imaginary,
  • conceptual,
  • Non-existent,
  • chimeric,
  • speculative,
  • hypothetical,
  • inventive,
  • apparitional,
  • dreamy.
  •mind-boggling (adjective)
  • unimaginable.
  •notional (adjective)
  • notional.
  •offensive (adjective)
  • outrageous.
  •spooky (adjective)
  • eerie.
  •strange, different; imaginary (adjective)
  • extreme,
  • exotic,
  • eccentric,
  • erratic,
  • foreign,
  • unreal,
  • chimerical,
  • wacky,
  • quaint,
  • absurd,
  • singular,
  • crazy,
  • irrational,
  • peculiar,
  • illusive,
  • suppositious,
  • incredible,
  • outlandish,
  • queer,
  • artificial,
  • capricious,
  • misleading,
  • unlikely,
  • fictional,
  • imaginative,
  • preposterous,
  • hallucinatory,
  • freakish,
  • insane,
  • odd,
  • comical,
  • grotesque,
  • unbelievable,
  • nonsensical,
  • implausible,
  • mad,
  • out of sight,
  • weird,
  • ludicrous,
  • ridiculous,
  • far-fetched,
  • phantasmagorical,
  • fanciful,
  • extravagant,
  • whimsical,
  • foolish.
  •suppositional (adjective)
  • Prophesied,
  • suppositional,
  • theoretical,
  • speculative,
  • hypothetical,
  • presumed,
  • imaginary,
  • conjectural.
  •unbelievable (adjective)
  • farfetched,
  • preposterous,
  • implausible,
  • incredible.
  •uncanny (adjective)
  • superhuman,
  • supernormal,
  • magical.
  •unreal (adjective)
  • unsubstantial.
  •visionary (adjective)
  • visionary.
  •wonderful, excellent (adjective)
  • first-rate,
  • cat's meow,
  • like wow,
  • primo,
  • best,
  • awesome,
  • marvelous,
  • best ever,
  • superb,
  • a-1,
  • delicious,
  • sensational.

• n.

  •
  • irrational,
  • freakish,
  • eccentric,
  • singular,
  • baroque,
  • ridiculous,
  • bizarre,
  • whimsical,
  • extreme,
  • quaint,
  • absurd,
  • capricious,
  • high-flown,
  • hallucinatory,
  • foreign,
  • unreasonable,
  • erratic,
  • ludicrous,
  • artificial,
  • weird,
  • out of sight,
  • odd,
  • comical,
  • illusive,
  • affected,
  • extravagant,
  • phantasmagoric,
  • hysterical.
  •
  • unbelievable.
  •
  • fancy,
  • huge,
  • enormous.
  •
  • incongruous,
  • surreal,
  • funny,
  • notional,
  • chimeric,
  • idiosyncratic.
  •
  • unpredictable,
  • ticklish,
  • inconsistent,
  • fickle,
  • inconstant,
  • unsteady,
  • changeable,
  • unstable,
  • variable,
  • temperamental,
  • mercurial,
  • volatile,
  • uncertain.
  •
  • good,
  • stupendous,
  • astonishing,
  • prodigious,
  • amazing,
  • astounding.
  •
  • far-fetched.
  •
  • invented,
  • fictional,
  • made-up,
  • fictive,
  • fictitious.
  •
  • cool,
  • super,
  • groovy,
  • great,
  • ripping,
  • dandy,
  • nifty,
  • glorious,
  • keen,
  • superb,
  • hot,
  • neat,
  • splendid,
  • swell,
  • divine.
  •fantastic (noun)
  • terrific,
  • marvellous,
  • extraordinary,
  • strange,
  • grotesque,
  • wonderful,
  • phenomenal,
  • antic,
  • rattling,
  • unreal,
  • tremendous,
  • fantastical,
  • unusual,
  • marvelous,
  • wondrous,
  • unrealistic,
  • howling.

• Other synonyms:

  •
  • fictional,
  • nifty,
  • ripping,
  • groovy,
  • chimerical,
  • astounding,
  • fictive,
  • notional,
  • mythological,
  • far-fetched,
  • exaggerated,
  • invented.
  •
  • fictitious,
  • unpredictable,
  • extreme,
  • stupendous,
  • astonishing,
  • chimeric,
  • mercurial,
  • amazing.
  •
  • capricious,
  • inconsistent,
  • variable,
  • prodigious,
  • made-up,
  • temperamental,
  • inconstant.
  •
  • changeable,
  • dandy,
  • volatile,
  • ticklish,
  • freakish,
  • unbelievable,
  • fickle.
  •
  • glorious,
  • unsteady,
  • great,
  • unstable.
  •
  • keen,
  • splendid,
  • divine,
  • neat,
  • cool,
  • hot.
  •
  • uncertain.
  •excessive
  • extravagant.
  •transcendent
  • transcendental.
  •unearthly
  • unworldly.
  •Other relevant words:
  • brag,
  • illusional,
  • finest,
  • gangbusters,
  • idiosyncratic,
  • rattling,
  • Denaturalized,
  • glorious,
  • tops,
  • grotesque,
  • forced,
  • farcical,
  • A1,
  • splendid,
  • superlatively,
  • unique,
  • overwhelmingly,
  • bonny,
  • false,
  • godlike,
  • ripping,
  • merry,
  • considerably,
  • phantom,
  • dumfounding,
  • sorcerer,
  • superlative,
  • gorgeous,
  • contrived,
  • flaky,
  • dangerous,
  • lunatic,
  • apparent,
  • expansive,
  • top,
  • fab,
  • fitful,
  • top-notch,
  • thoroughly,
  • dreadfully,
  • unexplainable,
  • high-flown,
  • wizard,
  • deeply,
  • far-fetched,
  • staggering,
  • improbable,
  • dubious,
  • heavenly,
  • temperamental,
  • wild,
  • definitely,
  • delightful,
  • howling,
  • magisterial,
  • fairy tale,
  • Non-existent,
  • moony,
  • extremely,
  • fictitious,
  • unrestrained,
  • outrageous,
  • shockingly,
  • splendiferous,
  • fantasy,
  • massively,
  • start,
  • delusive,
  • elevated,
  • ethereal,
  • strongly,
  • ingenious,
  • fantasque,
  • contrary,
  • antic,
  • snappy,
  • matchless,
  • barbaric,
  • cranky,
  • badly,
  • adroit,
  • dandy,
  • clipping,
  • highly,
  • nightmarish,
  • lovely,
  • Fairy-like,
  • unrealizable,
  • different,
  • singularity,
  • imbecilic,
  • enormously,
  • strained,
  • optimistic,
  • unworkable,
  • uncustomary,
  • praiseworthy,
  • herculean,
  • kinky,
  • impalpable,
  • sophistical,
  • clever,
  • queerness,
  • intensely,
  • savage,
  • jim-dandy,
  • impressive,
  • florid,
  • specious,
  • seeming,
  • topflight,
  • cut capers,
  • monstrous,
  • classic,
  • illusionary,
  • terrific,
  • amazingly,
  • sorely,
  • unactual,
  • bounce,
  • dude,
  • mind-boggling,
  • unsubstantial,
  • captious,
  • affected,
  • idealistic,
  • screaming,
  • boss,
  • incorporeal,
  • death-defying,
  • quizzical,
  • wayward,
  • frivolous,
  • corking,
  • transcendental,
  • chimerical,
  • extreme,
  • exaggerated,
  • mythic,
  • grand,
  • fishy,
  • fop,
  • humorous,
  • frightful,
  • foreign,
  • exquisite,
  • fascinating,
  • loony,
  • groovy,
  • huge,
  • freaky,
  • individual,
  • incongruous,
  • wonderworking,
  • bewildering,
  • impracticable,
  • far-out,
  • trumped-up,
  • outre,
  • unexampled,
  • foolhardy,
  • magical,
  • transcendent,
  • top-shelf,
  • sappy,
  • very,
  • frontline,
  • daring,
  • Vagarious,
  • supreme,
  • invented,
  • counterfeit,
  • massive,
  • rapturous,
  • incomprehensible,
  • dynamite,
  • rum,
  • humongous,
  • of mark,
  • rare,
  • quirky,
  • intangible,
  • cool,
  • peculiarity,
  • prodigious,
  • weird,
  • unknown,
  • towering,
  • sterling,
  • fearfully,
  • puckish,
  • incongruent,
  • prodigiously,
  • curvet,
  • particularly,
  • madcap,
  • hop,
  • foot it,
  • nonpareil,
  • ugly,
  • unmeaning,
  • spiritual,
  • hard to believe,
  • camp,
  • magician,
  • amazing,
  • animal,
  • flighty,
  • high-minded,
  • baroque,
  • idiosyncrasy,
  • loopy,
  • five-star,
  • colossally,
  • peerless,
  • make-believe,
  • nifty,
  • singular,
  • severe,
  • fantastical,
  • incredibly,
  • giddy,
  • a-one,
  • like wow,
  • Concocted,
  • sui generis,
  • primo,
  • mercurial,
  • improper,
  • gothic,
  • erroneous,
  • volatile,
  • nonconformist,
  • eerie,
  • bob,
  • self-deceptive,
  • delusional,
  • stupendously,
  • offbeat,
  • hatched,
  • impractical,
  • utopian,
  • figmental,
  • insane,
  • immensely,
  • hallucinative,
  • legendary,
  • leap,
  • delusory,
  • freak,
  • radical,
  • vagrant,
  • extravagant,
  • inexplicable,
  • egregious,
  • unconventional,
  • monumental,
  • ostensible,
  • enormous,
  • bizarro,
  • irrational,
  • harebrained,
  • beast,
  • unlikely,
  • barbarian,
  • flounce,
  • awkward,
  • uncompelling,
  • magnificent,
  • mightily,
  • sumptuous,
  • kooky,
  • droll,
  • jump about,
  • anomalous,
  • cracking,
  • immeasurably,
  • unearthly,
  • unbelievable,
  • ridiculous,
  • insubstantial,
  • FOUR STAR,
  • strange,
  • flabbergasting,
  • untypical,
  • inordinately,
  • stretched,
  • uncertain,
  • excellently,
  • extraordinaire,
  • unwonted,
  • most,
  • prime,
  • frantic,
  • airy,
  • imprudent,
  • hallucinatory,
  • unparalleled,
  • rococo,
  • rarely,
  • stupendous,
  • unnatural,
  • tiptop,
  • necromancer,
  • courageous,
  • unconformable,
  • keen,
  • awe-inspiring,
  • totally,
  • Gestic,
  • groundless,
  • completely,
  • supernatural,
  • impossible,
  • hugely,
  • spanking,
  • sublime,
  • absurd,
  • a-1,
  • unorthodox,
  • paradisaic,
  • put-up,
  • foolish,
  • swell,
  • terrifically,
  • choicest,
  • hysterical,
  • formidable,
  • strangeness,
  • puzzling,
  • romantic,
  • erratic,
  • excessively,
  • agitation,
  • brave,
  • phantasmal,
  • bound,
  • princely,
  • out-of-the-way,
  • incomparable,
  • magic,
  • cockamamie,
  • ace,
  • mad,
  • deucedly,
  • best,
  • wacky,
  • foreigner,
  • bully,
  • balmy,
  • phantasmagoric,
  • deceptive,
  • playful,
  • supercolossal,
  • peruke,
  • sleeveless,
  • inconstant,
  • infinitely,
  • aberrant,
  • curiosity,
  • raging,
  • odd,
  • maggoty,
  • unfashionable,
  • fictional,
  • atypical,
  • nondescript,
  • acutely,
  • quaint,
  • rash,
  • irresolute,
  • deviant,
  • marked,
  • freakish,
  • astounding,
  • illusive,
  • immaterial,
  • breathtaking,
  • spectral,
  • conspicuous,
  • spring,
  • preternatural,
  • topping,
  • unreal,
  • out of sight,
  • unrealistic,
  • firmly,
  • infrequent,
  • illusion,
  • Fantasied,
  • fancied,
  • dreamlike,
  • first-rate,
  • tomfool,
  • astonishing,
  • topnotch,
  • PHAT,
  • curious,
  • rummy,
  • appalling,
  • mythological,
  • positively,
  • poetic,
  • fabricated,
  • fallacious,
  • portentous,
  • angry,
  • marvellous,
  • arbitrary,
  • capital,
  • boffo,
  • Unpractical,
  • gone,
  • unstable,
  • to the max,
  • absolutely,
  • risky,
  • utterly,
  • fictive,
  • fabulously,
  • formidably,
  • comic,
  • fancy,
  • ticklish,
  • forged,
  • superb,
  • skip,
  • super,
  • banner,
  • abnormal,
  • unaccustomed,
  • particular,
  • unheard-of,
  • pre-eminent,
  • unrivalled,
  • inconceivable,
  • crazy,
  • dotty,
  • down,
  • stellar,
  • funny,
  • really,
  • notional,
  • terrifying,
  • trip,
  • paradisiac,
  • unfamiliar,
  • supernormal,
  • questionable,
  • ludicrous,
  • idealist,
  • surreal,
  • autistic,
  • laudable,
  • fantastically,
  • outsider,
  • awfully,
  • misleading,
  • world,
  • sharply,
  • superhuman,
  • perfect,
  • unmatched,
  • deluxe,
  • unreasonable,
  • comical,
  • bent,
  • doubtful,
  • smashing,
  • fickle,
  • dreamer,
  • tremendously,
  • dearly,
  • coxcomb,
  • baseless,
  • admirable,
  • first class,
  • exceptionally,
  • caper,
  • variable,
  • beguiling,
  • unexpected,
  • dream,
  • hallucinational,
  • caracole,
  • ramp,
  • marvy,
  • top of the line,
  • cooked-up,
  • amusement,
  • way out,
  • fine,
  • queer,
  • terribly,
  • brisk,
  • imaginative,
  • alien,
  • startling,
  • stunning,
  • silly,
  • hot,
  • hype,
  • blue chip,
  • changeable,
  • oddness,
  • vastly,
  • prize,
  • perfectly,
  • uncommon,
  • oddball,
  • phantasmic,
  • jump up,
  • Humorsome,
  • fairy,
  • quixotic,
  • made-up,
  • capricious,
  • incredulous,
  • brilliant,
  • surprising,
  • poorly,
  • skittish,
  • crack,
  • delicious,
  • pretend,
  • remarkably,
  • heroic,
  • kookie,
  • dance,
  • unfounded,
  • barmy,
  • reckless,
  • awesome,
  • petulant,
  • wondrous,
  • neat,
  • consummate,
  • mythical,
  • fey,
  • mortal,
  • tremendous,
  • stranger,
  • frisk,
  • enigmatic,
  • laughable,
  • unsurpassed,
  • mind-blowing,
  • artificial,
  • frightfully,
  • dazzling,
  • uncanny,
  • zippy,
  • blissful,
  • imagined,
  • strikingly,
  • starry-eyed,
  • chimeric,
  • divine,
  • flagrant,
  • unequalled,
  • cat's meow,
  • delusionary,
  • entirely,
  • colossal,
  • pixyish,
  • unaccountable,
  • bizarre,
  • paramount,
  • ever so,
  • hard to swallow,
  • glamorous,
  • great,
  • wise man,
  • oddity,
  • fully,
  • beyond belief,
  • suppositious,
  • beautiful,
  • nonconforming,
  • unconvincing,
  • grandiose,
  • daydreamer,
  • crotchety,
  • inconsistent,
  • unsteady,
  • lively,
  • unpredictable,
  • greatly,
  • spectacular,
  • ideal,
  • nonsensical,
  • fantabulous,
  • eccentric,
  • buck,
  • manufactured,
  • whimsical,
  • wig,
  • fanciful,
  • visionary,
  • screwy,
  • Unconceivable,
  • brute,
  • best ever,
  • vault,
  • motiveless,
  • noticeable,
  • decidedly,
  • gross,
  • unworldly,
  • valiant,
  • dumbfounding,
  • decisively,
  • overwhelming,
  • irregular,
  • entrancing,
  • supposititious,
  • noble-minded,
  • apparitional,
  • illusory,
  • fancy-woven,
  • moody,
  • signal,
  • extraordinarily,
  • wanton,
  • assumed,
  • widely,
  • heartily,
  • unimaginable,
  • phantasmagorical,
  • barbarous,
  • exceedingly,
  • crying,
  • good,
  • arabesque,
  • impressively,
  • eccentricity.

Antonyms for Fantastic:

• adj.

  • enormous
    insignificant, unimportant, miniature, minute.
  • strange, different; imaginary
    reasonable, usual, plausible, logical, common, little, credible, plain, balanced, ordinary, believable, real, sensible, serious, Familiar, rational, small, regular, sane, conventional, commonplace, normal, unpleasant, poor, unimaginative, tiny, bad, customary, realistic.
  • wonderful, excellent
    unamazing, inferior.
  • Other antonyms:
    likely, supposable, palpable, prosaic, existent, terrible, atrocious, vile, existing, thinkable, second-rate, execrable, Questionless, verifiable, solid, mediocre, poor, material, authentic, bad, substandard, low-grade, creditable, convincing, rotten, calculated, genuine, verified, tangible, indisputable, possible, sure, unglamorous, actual, unromantic, probable, substantial, pathetic, physical, calculable, lousy, sound, undeniable, corporeal, literal, factual, unquestionable, indubitable, imaginable, undoubted, incontestable, conceivable, unsatisfactory, awful, certain, accurate, inferior, sensible, reasonable, wretched, middling, true, cogitable.