Definition for Alert:

• Watchful, vigilant; lively, nimble; ( n.) warning call, alarm; on the a., on the look-out. Hence alertly adv. alertness n. [ French]

Synonyms for Alert:

• adj.

  •active (adjective)
  • about.
  •attentive (adjective)
  • sharp,
  • preoccupied,
  • interested,
  • Hearkening,
  • on the lookout,
  • observant,
  • diligent,
  • engrossed,
  • Immersed,
  • Considering,
  • on the job,
  • enraptured,
  • responsible,
  • concerned,
  • fascinated,
  • entranced,
  • all ears,
  • rapt,
  • Concentrating,
  • absorbed,
  • on the qui vive,
  • heedful,
  • regardful,
  • on one's toes,
  • Scrutinizing.
  •attentive, lively (adjective)
  • on guard,
  • switched on,
  • wise,
  • psyched up,
  • quick,
  • good hands,
  • cagey,
  • fast on the draw,
  • jazzed,
  • on the ball,
  • circumspect,
  • hip,
  • perceptive,
  • wired.
  •aware (adjective)
  • up on,
  • in the know.
  •bright (adjective)
  • Clear-headed.
  •cautious (adjective)
  • gingerly,
  • prudent,
  • guarded,
  • deliberate.
  •ironic (adjective)
  • ironic.
  •lively (adjective)
  • enthusiastic,
  • vigorous,
  • animated,
  • animate,
  • mettlesome,
  • vital.
  •perky (adjective)
  • perky,
  • bright-eyed and bushy-tailed.
  •vigilant (adjective)
  • strict,
  • fastidious,
  • particular,
  • prepared,
  • scrupulous,
  • exacting,
  • finical,
  • precise,
  • sharp-eyed,
  • meticulous,
  • provident,
  • conscientious,
  • thorough,
  • thoughtful,
  • fussy.

• adv

  •moving (adverb)
  • astir.

• n.

  •
  • tell.
  •
  • clear.
  •
  • bright.
  •alarm (noun)
  • whistle,
  • siren,
  • horn,
  • buoy,
  • foghorn,
  • semaphore,
  • flare,
  • call,
  • bell.
  •alert (noun)
  • fly,
  • alerting,
  • heads-up,
  • lidless,
  • on the alert,
  • qui vive,
  • conscious,
  • open-eyed,
  • wakeful,
  • argus-eyed,
  • perked,
  • perched.
  •indication (noun)
  • badge,
  • insignia,
  • indication,
  • icon,
  • designation,
  • emblem,
  • legend,
  • logotype,
  • gesticulation,
  • crest,
  • pointer,
  • token,
  • logo,
  • symbol,
  • hint,
  • banner,
  • notation,
  • marker,
  • denotation,
  • figuration,
  • signpost,
  • key.
  •warning (noun)
  • flap,
  • admonition,
  • sos,
  • caveat,
  • threat,
  • advisory,
  • mayday,
  • notice.

• v.

  •alarm (verb)
  • frighten,
  • shock,
  • dismay,
  • surprise,
  • panic,
  • startle.
  •caution (verb)
  • advise,
  • exhort,
  • enjoin,
  • admonish.
  •indicate (verb)
  • beckon,
  • nod,
  • betoken,
  • mark,
  • flag,
  • cue,
  • point,
  • denote,
  • gesture,
  • note,
  • wave,
  • motion,
  • wink,
  • shrug,
  • brand,
  • nudge,
  • ticket,
  • symbolize,
  • label,
  • stamp,
  • designate,
  • tag,
  • gesticulate,
  • guide,
  • point out,
  • prompt,
  • indicate.
  •warn (verb)
  • threaten,
  • wave flag,
  • tip,
  • inform.

Antonyms for Alert:

• adj.

  • all
    unalert.
  • attentive, lively
    asleep, lethargic, lazy, indiscreet, foolish, ignorant, slow, thoughtless, incautious, drowsy, unintelligent, stupid, sluggish, weary, indifferent, careless, uneducated, unaware, dull, inattentive, unobservant, negligent.
  • Other antonyms:
    brainless, obtuse, idiotic, faraway, slow-witted, impetuous, lunatic, bold, lamebrain, unintentional, cuckoo, dense, dreaming, unknowing, dim-witted, leisurely, logy, indiscreet, insane, harebrained, balmy, half-baked, injudicious, softheaded, ignorant, crawling, inadvertent, senseless, asleep, incognizant, witless, imprudent, engrossed, featherheaded, dippy, boneheaded, nonsensical, imbecile, tardy, fool, indolent, pinheaded, dilatory, heavy, idle, thick-witted, brain dead, dillydallying, loony, unwise, dim, fatuous, unresponsive, unvigilant, sleeping, preposterous, unplanned, quiescent, tomfool, Weak-minded, Chuckleheaded, regardless, feebleminded, poky, inert, absurd, birdbrained, lagging, kooky, rash, poking, moronic, soft, quiet, Daffy, dragging, dormant, crackpot, sluggish, unintellectual, dorky, inconsiderate, unthinking, creeping, uneducated, unsmart, simple, mad, simpleminded, unintelligent, unprepared, unheeding, cockeyed, dunderheaded, wacky, daft, dreamy, zany, venturesome, unwitting, lunkheaded, screwball, crazy, unhurried, unready, nonintellectual, half-witted, laggard, slothful, illiterate, airheaded, doltish, thick, vacuous, untaught, nutty, lowbrow, opaque, thickheaded, bubbleheaded, dull, uninformed, dawdling, unwatchful, gormless, inactive, empty-headed, foolish, asinine, dumb, unmindful, daydreaming, sappy, dotty.

• v.

  • warn
    conceal, hide.

Homophones for Alert:

• already, awlwort, aleyrodidae.

Hypernym for Alert:

• n.

  • state
    air alert, strip alert, red alert.

• v.

  • communication
    wake.

Hyponym for Alert:

• n.

  • communication
    warning.
  • state
    preparedness, readiness, preparation.

• v.

  • communication
    warn.