Definition for Portentous:

• Ominous; foreshowing ill; wonderful, in an ill sense.

Synonyms for Portentous:

• adj.

  •all (adjective)
  • portentous.
  •apocalyptical (adjective)
  • more revelational,
  • most revelational,
  • more revelatory,
  • revelatory,
  • revelational,
  • most revelatory.
  •dangerous (adjective)
  • fatal,
  • shaky,
  • thorny,
  • perilous,
  • chancy,
  • breakneck,
  • loaded,
  • insecure,
  • unstable,
  • unhealthy,
  • ticklish,
  • Jeopardous,
  • ugly*,
  • vulnerable,
  • urgent,
  • deadly,
  • parlous,
  • touch-and-go,
  • delicate,
  • impregnable,
  • malignant,
  • treacherous,
  • dangersome,
  • dynamite,
  • Viperous,
  • touchy,
  • menacing,
  • queasy,
  • risky,
  • mortal,
  • precarious,
  • wicked,
  • touch and go,
  • exposed,
  • serious,
  • on collision course,
  • hot*,
  • nasty,
  • heavy*,
  • speculative,
  • formidable,
  • terrible,
  • hairy*,
  • bad,
  • pressing,
  • unsafe,
  • critical,
  • serpentine.
  •dire (adjective)
  • frightful,
  • ugly,
  • Oppressing,
  • distressing,
  • catastrophic,
  • afflictive,
  • gloomy,
  • horrible,
  • appalling,
  • grim,
  • scowling,
  • dreadful,
  • unfortunate,
  • heartbreaking,
  • fearful,
  • regrettable,
  • depressing,
  • deplorable,
  • terrific,
  • black,
  • horrid,
  • fierce,
  • cruel,
  • woeful,
  • calamitous,
  • cataclysmic,
  • grievous,
  • awful,
  • dismal,
  • redoubtable,
  • lamentable,
  • disastrous,
  • shocking.
  •fateful (adjective)
  • decisive,
  • determinative,
  • acute,
  • inauspicious,
  • Resultful,
  • conclusive,
  • Doomful,
  • direful,
  • eventful.
  •frightful/frightening (adjective)
  • hairy,
  • chilling,
  • disquieting,
  • inconceivable,
  • dread,
  • unnerving,
  • repellent,
  • hideous,
  • hair-raising,
  • atrocious,
  • terrifying,
  • petrifying,
  • macabre,
  • morbid,
  • spooky,
  • horrifying,
  • awesome,
  • ghastly,
  • intimidating,
  • lurid,
  • gruesome,
  • dismaying,
  • harrowing,
  • daunting.
  •fustian (adjective)
  • pretentious,
  • ranting,
  • boastful,
  • vainglorious,
  • high and mighty,
  • ostentatious,
  • Flaunting,
  • self-centered,
  • self-important.
  •hellfire (adjective)
  • fire-and-brimstone.
  •ominous (adjective)
  • inhospitable,
  • forbidding,
  • unfriendly,
  • malign,
  • lowering,
  • hostile,
  • Presaging,
  • clouded,
  • dark,
  • unpropitious,
  • prescient,
  • baleful,
  • minatory.
  •pompous (adjective)
  • flowery,
  • inflated,
  • affected,
  • windy,
  • orotund,
  • sonorous,
  • magisterial,
  • narcissistic,
  • showy,
  • rhetorical,
  • magniloquent,
  • flatulent,
  • presumptuous,
  • selfish,
  • turgid,
  • grandiose,
  • bloated,
  • stuck-up.
  •portentous (adjective)
  • exhilarating,
  • suggestive,
  • ill-fated,
  • alarming,
  • thrilling,
  • haunting,
  • inspiring,
  • intriguing,
  • Augural,
  • fated,
  • destined,
  • impending.
  •puffed-up (adjective)
  • hoity toity,
  • puffedup,
  • hoitytoity.
  •sinister (adjective)
  • deleterious,
  • adverse,
  • pernicious,
  • perverse,
  • hurtful,
  • unfavorable,
  • dishonest,
  • evil,
  • malevolent,
  • obnoxious,
  • harmful,
  • poisonous,
  • corrupt,
  • injurious,
  • mischievous.
  •solemn (adjective)
  • in-tenser,
  • in tenser,
  • more brooding,
  • matter life and death,
  • in-tensest,
  • in-tense,
  • nononsense,
  • de-liberate,
  • in tense,
  • most brooding,
  • matter of life death,
  • de liberate,
  • matter life death.
  •threatening (adjective)
  • overhanging,
  • Intimidatory,
  • loury,
  • over hanging,
  • Impendent,
  • Lowery,
  • comminatory,
  • minacious.
  •unusual (adjective)
  • unusual,
  • rare.
  •weighty (adjective)
  • most underlined,
  • under lined,
  • more underlined,
  • life death,
  • under-lined.

• n.

  •
  • forewarned is forearmed,
  • expert.
  •
  • chatty,
  • circuitous,
  • conversational,
  • declamatory,
  • clean,
  • articulate,
  • economical,
  • diffuse,
  • discursive,
  • crisp.
  •
  • grave,
  • warn,
  • luck.
  •important (noun)
  • important.
  •portentous (noun)
  • prophetical.

• Other synonyms:

  •
  • apocalyptic,
  • apocalyptical,
  • consultative,
  • fire and brimstone,
  • cautionary,
  • advisory,
  • Consulting,
  • hellfire,
  • warning,
  • deterrent.
  •
  • baneful.
  •
  • unlucky.
  •sinister
  • monitory.

Antonyms for Portentous:

• adj.

  • Other antonyms:
    customary, prosperous, enervating, tedious, draining, beggarly, weary, vulgar, unpretentious, monotonous, boring, humble, uninspired, commonplace, Jading, debilitating, unimportant, benign, wearing, tiring, typical, base, wearying, unremarkable, ordinary, inferior, undignified, usual, uninteresting, normal, unexceptional, auspicious, unprophetic, demoralizing, golden, despicable, unimpressive, disheartening, unthreatening, common, paltry, wearisome, mundane, enfeebling, lowly, insignificant, dispiriting, uninspiring, contemptible, discouraging, mean, exhausting, dull.

• Other antonyms:

  • n.
    nonsignificant.

Portentous Sentence Examples:

• As she rose the old man pointed a portentous finger.

• " You sure don't need to talk American to tell it," he said as one who had just made a portentous discovery.