Definition for Dangerous:

• Unsafe; involving, or beset with, danger; ready to do harm or injury; perilous; hazardous.

Synonyms for Dangerous:

• adj.

  •active (adjective)
  • radioactive.
  •adventurous (adjective)
  • risky,
  • reckless,
  • venturous.
  •all (adjective)
  • unsafe.
  •bad (adjective)
  • ruinous.
  •critical (adjective)
  • pivotal.
  •dangerous (adjective)
  • threatening,
  • Jeopardous,
  • ominous,
  • perilous,
  • risky,
  • treacherous,
  • menacing,
  • unsafe,
  • insecure,
  • precarious,
  • hairy,
  • hazardous.
  •dicey (adjective)
  • iffy.
  •difficult (adjective)
  • scabrous.
  •harmful (adjective)
  • noisome,
  • bad,
  • poisonous,
  • malignant,
  • injurious,
  • hurtful.
  •hazardous, troubling (adjective)
  • speculative,
  • nasty,
  • pressing,
  • fatal,
  • mortal,
  • unhealthy,
  • parlous,
  • insecure,
  • loaded,
  • impending,
  • heavy,
  • touch-and-go,
  • Jeopardous,
  • queasy,
  • precarious,
  • bad,
  • ticklish,
  • perilous,
  • threatening,
  • vulnerable,
  • serpentine,
  • dynamite,
  • exposed,
  • touchy,
  • on collision course,
  • alarming,
  • deadly,
  • menacing,
  • unstable,
  • terrible,
  • chancy,
  • critical,
  • thorny,
  • Viperous,
  • risky,
  • dangersome,
  • impregnable,
  • serious,
  • malignant,
  • breakneck,
  • shaky,
  • delicate,
  • ugly,
  • hot,
  • urgent,
  • unsafe,
  • treacherous,
  • hairy,
  • wicked,
  • portentous,
  • formidable.
  •important (adjective)
  • major.
  •insidious (adjective)
  • perfidious.
  •murderous (adjective)
  • slaughterous,
  • murderous,
  • sanguinary,
  • sanguineous.
  •noisome (adjective)
  • mephitic.
  •pernicious (adjective)
  • miasmic.
  •serious (adjective)
  • no laughing matter,
  • of consequence.
  •severe (adjective)
  • severe,
  • bad.
  •threatening (adjective)
  • minatory.
  •unhealthful (adjective)
  • unwholesome.
  •wicked (adjective)
  • wicked.

• n.

  •
  • safe,
  • shaky,
  • bad,
  • exposed,
  • thorny,
  • delicate,
  • portentous,
  • unprotected,
  • touchy,
  • disastrous,
  • unstable,
  • ticklish,
  • vulnerable,
  • speculative,
  • uncertain,
  • slippery,
  • hot,
  • rickety,
  • ruinous,
  • endangered,
  • hairy,
  • unhealthy,
  • alarming,
  • unsteady.
  •
  • malignant,
  • mortal,
  • fatal,
  • nasty,
  • impending,
  • deadly,
  • ugly,
  • explosive,
  • impregnable.
  •
  • adventurous.
  •dangerous (noun)
  • self-destructive,
  • dicey,
  • unreliable,
  • serious,
  • harmful,
  • grievous,
  • on the hook,
  • chancy,
  • insidious,
  • suicidal,
  • severe,
  • venturous,
  • parlous,
  • dodgy,
  • chanceful,
  • critical,
  • venturesome,
  • desperate,
  • treacherous,
  • touch-and-go,
  • breakneck,
  • kamikaxe,
  • unsafe,
  • precarious,
  • hazardous,
  • grave,
  • risky,
  • perilous.

• v.

  •frightening (verb)
  • alarming.

• Other synonyms:

  •
  • lethal,
  • disastrous,
  • dangerously,
  • fierce,
  • calamitous,
  • kamikaze,
  • malign,
  • marauding,
  • cataclysmic,
  • perilously,
  • ruinous,
  • destructive,
  • deadly.
  •
  • nasty,
  • convulsive,
  • hostile,
  • speculative,
  • devastating,
  • catastrophic,
  • glowering,
  • incendiary,
  • ferocious,
  • forbidding,
  • troublesome,
  • unsound,
  • sticky,
  • internecine,
  • delicate.
  •
  • seriously,
  • suspect,
  • volatile,
  • mortal,
  • fatal,
  • adventurous.
  •
  • narrow.
  •
  • negative.
  •
  • hot.
  •crucial
  • acute.
  •deadly
  • pestilential.
  •detrimental
  • unhealthful.
  •eruptive
  • explosive.
  •flammable
  • inflammable.
  •hazardous
  • hairbreadth.
  •miasmal
  • Miasmatic.
  •noxious
  • Nocuous,
  • poisonous.
  •uncontrollable
  • unruly.
  •unhealthful
  • unwholesome.
  •Other relevant words:
  • serious,
  • doubtful,
  • life-and-death,
  • nerve-racking,
  • evil,
  • danger,
  • damaging,
  • rascal,
  • dire,
  • barbarous,
  • truculent,
  • heedless,
  • trying,
  • malignant,
  • courageous,
  • human skin,
  • safe and sound,
  • unsound,
  • imp,
  • chancy,
  • rudely,
  • windy,
  • heartbreaking,
  • solemn,
  • tentative,
  • irresponsible,
  • fleece,
  • blustery,
  • brute,
  • bloodthirsty,
  • hardly,
  • severely,
  • undefended,
  • malign,
  • stormy,
  • fine,
  • Larrikin,
  • coarsely,
  • hair-splitting,
  • formidable,
  • consolidate,
  • be afraid,
  • haphazard,
  • risk,
  • fur,
  • self-destructive,
  • nearly,
  • pivotal,
  • cruel,
  • calamitous,
  • madcap,
  • nerve-wracking,
  • awkward,
  • critic,
  • marauding,
  • hare-brained,
  • harsh,
  • forbidding,
  • desperate,
  • horrendous,
  • grave,
  • virtually,
  • charged,
  • restore,
  • over-nice,
  • crook,
  • badly,
  • seriously,
  • unfavourable,
  • baneful,
  • Looming,
  • savage,
  • dubious,
  • peril,
  • heinous,
  • mischievous,
  • glowering,
  • septic,
  • injudicious,
  • flagitious,
  • sanguineous,
  • preserved,
  • incautious,
  • baleful,
  • bad,
  • captious,
  • imperil,
  • perfidious,
  • fragile,
  • dynamite,
  • dicky,
  • barbarian,
  • extinguish,
  • poisonous,
  • leather,
  • adverse,
  • kamikaxe,
  • explosive,
  • venturous,
  • harmful,
  • vicious,
  • tenuous,
  • impregnable,
  • shifting,
  • exposed,
  • ferocious,
  • corruptive,
  • unsure,
  • eradicate,
  • Controvertible,
  • tigerish,
  • feral,
  • foolish,
  • wild,
  • imprudent,
  • scary,
  • protect,
  • devastating,
  • perilously,
  • death-defying,
  • endangered,
  • vitiated,
  • knave,
  • foolhardy,
  • consequential,
  • intimidating,
  • tremendous,
  • loaded,
  • mordacious,
  • slaughterous,
  • Semibarbarian,
  • questionable,
  • negative,
  • provisional,
  • susceptible,
  • menace,
  • vile,
  • injurious,
  • probably,
  • reliable,
  • awfulness,
  • uncertain,
  • loud,
  • inhuman,
  • worrying,
  • sleety,
  • thorny,
  • miraculous,
  • critical,
  • wet,
  • mad,
  • hairy,
  • approximately,
  • wildcat,
  • cataclysmic,
  • unhealthful,
  • tight,
  • unmindful,
  • minacious,
  • dispel,
  • breakneck,
  • Unhazarded,
  • rough,
  • in danger,
  • naughtily,
  • inflammable,
  • out on a limb,
  • rash,
  • wrongly,
  • Chancey,
  • unsubstantial,
  • sticky,
  • dickey,
  • unfaithful,
  • mephitic,
  • unguarded,
  • jeopardy,
  • unbelievable,
  • dodgy,
  • revive,
  • fantastic,
  • corrupt,
  • tough,
  • plug-ugly,
  • rickety,
  • slanderous,
  • disloyal,
  • Discomforting,
  • headlong,
  • murderous,
  • ugly,
  • incendiary,
  • thief,
  • hazardously,
  • unprotected,
  • caitiff,
  • cancel,
  • renovate,
  • of consequence,
  • close,
  • pestilential,
  • insidious,
  • troublesome,
  • crucial,
  • fierce,
  • herculean,
  • ruinous,
  • alter,
  • abolish,
  • renew,
  • minatory,
  • prejudicial,
  • fatal,
  • of moment,
  • debased,
  • rotten,
  • censorious,
  • desultory,
  • homicidal,
  • unsettled,
  • intimately,
  • unhealthy,
  • alarming,
  • suicidal,
  • resuscitate,
  • Unsteadfast,
  • superhuman,
  • catastrophic,
  • brutish,
  • shed tears,
  • dreadful,
  • anxious,
  • on the hook,
  • sanguinary,
  • refresh,
  • violently,
  • hood,
  • chanceful,
  • snowy,
  • major,
  • difficult,
  • queasy,
  • unpredictable,
  • hazard,
  • hairbreadth,
  • dicey,
  • hooligan,
  • insubstantial,
  • fell,
  • hostile,
  • awfully,
  • hurtful,
  • accurate,
  • impulsive,
  • disagreeable,
  • combine,
  • devil-may-care,
  • unsteady,
  • annihilate,
  • libellous,
  • reckless,
  • stark,
  • base,
  • ruffian,
  • delicate,
  • impostor,
  • radioactive,
  • mortal,
  • careless,
  • deadly,
  • extraordinary,
  • deleterious,
  • Mephitical,
  • spiteful,
  • killing,
  • fraught with danger,
  • touch-and-go,
  • endanger,
  • touchy,
  • vital,
  • strict,
  • exquisite,
  • dangerousness,
  • subtle,
  • terrible,
  • impending,
  • rainy,
  • venomous,
  • uncomfortable,
  • shifty,
  • thoughtless,
  • volatile,
  • nice,
  • detrimental,
  • narrow,
  • open,
  • unreliable,
  • serpentine,
  • daredevil,
  • awful,
  • tender,
  • venturesome,
  • disquieting,
  • refurbish,
  • on collision course,
  • brutal,
  • Periculous,
  • noxious,
  • tricky,
  • vulnerable,
  • dangersome,
  • austere,
  • defamatory,
  • Scathless,
  • diabolic,
  • presumably,
  • unpleasant,
  • supercritical,
  • heavy,
  • acute,
  • portentous,
  • miasmic,
  • heartrending,
  • ill,
  • get rid of,
  • lethal,
  • desperado,
  • virulent,
  • dangerously,
  • severe,
  • delete,
  • stern,
  • problematic,
  • eliminate,
  • perfect,
  • brave,
  • safe,
  • tense,
  • insalubrious,
  • godlike,
  • disastrous,
  • daring,
  • hoodlum,
  • pernicious,
  • unsalutary,
  • shaky,
  • ticklish,
  • life-or-death,
  • no laughing matter,
  • closely,
  • hit-or-miss,
  • iffy,
  • life-threatening,
  • hornet's nest,
  • fraught,
  • counterproductive,
  • scabrous,
  • gravity,
  • hopeless,
  • amazing,
  • unevenly,
  • destructive,
  • hot,
  • polluted,
  • temporary,
  • wicked,
  • undependable,
  • frightening,
  • intense,
  • Nocuous,
  • sober,
  • Doubtable,
  • provocative,
  • urgent,
  • important,
  • bestial,
  • rid,
  • significant,
  • untrustworthy,
  • roughly,
  • almost,
  • adventurous,
  • barbaric,
  • chance,
  • convulsive,
  • parlous,
  • toxic,
  • monstrous,
  • unruly,
  • excessive,
  • weighty,
  • defenceless,
  • hazardousness,
  • hair-raising,
  • fabulous,
  • beyond hope,
  • negligent,
  • unstable,
  • rogue,
  • precariousness,
  • kamikaze,
  • momentous,
  • slippery,
  • speculative,
  • nasty,
  • be upset,
  • Viperous,
  • mean,
  • revivify,
  • valiant,
  • disadvantageous,
  • seriousness,
  • pressing,
  • Miasmatic,
  • foul,
  • terrifying,
  • unfriendly,
  • phenomenal,
  • sensitive,
  • poorly,
  • Unsolid,
  • atrocious,
  • hard,
  • amalgamate,
  • malicious,
  • sedate,
  • obliterate,
  • internecine,
  • suspect,
  • legendary,
  • bully,
  • heroic,
  • unwise,
  • random,
  • firebrand,
  • louring,
  • incredible,
  • infirm,
  • sloppy,
  • grievous,
  • noisome,
  • toxicant,
  • harshly,
  • lowering,
  • lemon shark,
  • unwholesome,
  • acuteness,
  • malevolent,
  • terminal,
  • in the balance.

Antonyms for Dangerous:

• adj.

  • all
    safe.
  • hazardous, troubling
    strong, guarded, untroubled, sure, healthy, healthful, pleasant, certain, kind, true, trivial, ok, pleasing, happy, careful, good, wonderful, great, unimportant, unhazardous, agreeable, nice, wholesome, secure, honest, harmless, stable, safe.
  • Other antonyms:
    propitious, advantageous, salubrious, nonpolluting, nonlethal, nonvenomous, nonfatal, weak, powerless, feeble, helpless, wholesome, beneficial, nonpoisonous, noncritical, salutary, noncorrosive, useful, unthreatening, nondestructive, favorable, noncrucial, helpful, remedial, palliative, curative, healthful, noninfectious, contemptible, good, despicable, nonhazardous, sound, benignant, nontoxic, healthy.

• Other antonyms:

  • n. t.
    advantageous, agreeable, beneficial, benignant, careful, certain, curative, favorable, good, great, guarded, happy, healthful, healthy, helpful, honest, invulnerable, nice, nonfatal, noninfectious, nonlethal, nonpoisonous, nontoxic, nonvenomous, out of danger, palliative, pleasant, pleasing, propitious, protected, reliable, remedial, salubrious, salutary, simple, sound, stable, strong, sure, trivial, true, unimportant, uninjured, unthreatening, untroubled, useful, wholesome, wonderful, noncorrosive, nonhazardous, nonpolluting, nondestructive, nonthreatening, ultrasafe, Out of harm's way, O.K. or okay.