Definition for Wideawake:

• Marked by vigilance and alertness.

Synonyms for Wideawake:

• adj.

  •bright (adjective)
  • aware,
  • inventive,
  • Clear-headed,
  • precocious,
  • having smarts,
  • whiz kid,
  • smart,
  • brilliant,
  • ingenious,
  • acute,
  • astute,
  • einstein,
  • quick-witted,
  • eggheaded,
  • keen,
  • brainy,
  • discerning,
  • advanced,
  • knowing.
  •sleepless (adjective)
  • fidgety,
  • edgy,
  • troubled,
  • on edge,
  • strung out,
  • worried,
  • jumpy,
  • wakeful,
  • antsy,
  • anxious,
  • nervous,
  • fidgeting,
  • unsettled,
  • bustling,
  • tossing and turning.
  •vigilant (adjective)
  • agog,
  • cautious,
  • unsleeping,
  • with weather eye open,
  • with eyes peeled,
  • sleepless,
  • looking to,
  • looking for,
  • guarded,
  • on toes,
  • waiting on,
  • on alert,
  • open-eyed.
  •wakeful (adjective)
  • Insomnious,
  • insomniac,
  • on the alert,
  • astir,
  • waking.
  •wide-awake (adjective)
  • all ears,
  • quick,
  • bright-eyed and bushy-tailed,
  • on guard,
  • bright,
  • on the ball,
  • wide-eyed,
  • alert,
  • fast on the draw,
  • active,
  • on the job,
  • attentive,
  • psyched up,
  • on one's toes,
  • vigilant,
  • intelligent,
  • heads up,
  • watchful,
  • sharp,
  • ready,
  • on the lookout,
  • spirited,
  • lively,
  • wired.

• Other synonyms:

  •adj.
  • adept,
  • adroit,
  • advertent,
  • agile,
  • alive,
  • apt,
  • brisk,
  • cagey,
  • calculating,
  • canny,
  • careful,
  • chary,
  • circumspect,
  • clear-sighted,
  • clever,
  • considerate,
  • correct,
  • deft,
  • detecting,
  • discreet,
  • discriminating,
  • distrustful,
  • doubting,
  • eager,
  • eagle-eyed,
  • efficient,
  • expeditious,
  • frugal,
  • gingerly,
  • glued,
  • handy,
  • heedful,
  • hip,
  • hooked,
  • immediate,
  • instant,
  • instantaneous,
  • interested,
  • leery,
  • light,
  • lissome,
  • lithe,
  • mindful,
  • obedient,
  • observant,
  • on the button,
  • on the dot,
  • on the nose,
  • on the qui vive,
  • on time,
  • penetrating,
  • perceptive,
  • precise,
  • prepared,
  • proficient,
  • prompt,
  • provident,
  • prudent,
  • punctual,
  • questioning,
  • rapid,
  • regardful,
  • safe,
  • saving,
  • searching,
  • sensitive,
  • sharp-eyed,
  • skillful,
  • sly,
  • sparing,
  • speedy,
  • sprightly,
  • spry,
  • surveying,
  • suspicious,
  • swift,
  • thrifty,
  • timely,
  • understanding,
  • unhesitating,
  • wary,
  • wide-awake,
  • willing,
  • wise,
  • Deducing,
  • Discovering,
  • Intentive,
  • Observative,
  • Comprehending,
  • Considering,
  • Contemplating,
  • jazzed,
  • see to,
  • on the watch,
  • unwasteful,
  • good hands,
  • handling with kid gloves,
  • keeping on one's toes,
  • not missing a trick,
  • see after,
  • switched on,
  • thinking twice,
  • walking on eggs,
  • watching one's step,
  • watching out,
  • with it.
  •adv
  • awake,
  • vital,
  • on top of.

Antonyms for Wideawake:

• adj.

  • alert
    foolish, indiscreet, lazy, dull, indifferent, ignorant, asleep, incautious, inattentive, drowsy, weary, lethargic, unintelligent, unobservant, sluggish, slow, thoughtless, careless, stupid, unaware, uneducated, negligent.
  • bright
    depressing, horrible, light, depressed, gloomy, doleful, black, dusky, dreary, dark, unpromising, murky, typical, unhappy, pale, obscure, pastel, cloudy, unstylish, somber, threatening, normal.
  • nimble
    inept, undexterous, Unhandy, lumbering, unskilled, clumsy, unskillful, stiff, awkward.
  • observant
    unwatchful, neglectful, undiscriminating, heedless, unmindful.
  • prompt
    late, delayed, unwilling, later, unprepared, apathetic, tardy.
  • vigilant
    uncareful, impulsive, rash.
  • wakeful
    sleepy.
  • wary
    reckless, certain, inconsiderate.