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| Main Entry: |
alert
 [uh-lurt] 
|
| Part of Speech: | adjective |
| Definition: | attentive, lively |
| Synonyms: | active, all ears, bright, cagey, careful, circumspect, clever, fast on the draw, good hands, heads up, heedful, hip, intelligent, jazzed, observant, on guard, on one's toes, on the ball, on the job, on the lookout, on the qui vive, perceptive, psyched up, quick, ready, sharp, spirited, switched on, vigilant, wary, watchful, wide-awake, wired, wise, with it |
| Antonyms: | asleep, drowsy, inattentive, lethargic, sluggish, unobservant, weary |
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| Main Entry: | alert |
| Part of Speech: | verb |
| Definition: | warn |
| Synonyms: | alarm, flag, forewarn, give the high sign, inform, notify, put on guard, signal, tip, tip off, wave flag |
| Main Entry: | able |
| Part of Speech: | adjective |
| Definition: | capable of performing; having an innate capacity |
| Synonyms: | adept, adequate, adroit, agile, alert, apt, bright, capable, competent, cunning, deft, dexterous, easy, effortless, endowed, equipped, facile, fitted, good, intelligent, knowing, powerful, ready, smart, strong, worthy |
| Notes: | able is having the necessary power to accomplish something while capable means having the potential to accomplish something |
| Antonyms: | ineffective, inept, infirm, powerless, unable, useless |
Example Sentences
- They can map out physical dangers and act as early-warning systems to alert humans to the presence of hazardous chemicals or fire.
- Traffic lights could alert cars when they are about to change, or broadcast the latest congestion update to waiting vehicles.
- In theory, the insects' movements set off an alarm to alert authorities.
| Main Entry: | active |
| Part of Speech: | adjective |
| Definition: | very involved in activity |
| Synonyms: | aggressive, agile, alert, alive, animated, assiduous, bold, brisk, bustling, busy, chipper, daring, dashing, determined, dexterous, diligent, dynamic, eager, energetic, engaged, enlivened, enterprising, enthusiastic, eventful, fireball, forceful, forcible, fresh, frisky, hard-working, high-spirited, hyper, industrious, intense, inventive, jumping, keen, lively, nimble, on the move, perky, persevering, purposeful, pushing, quick, rapid, ready, resolute, sharp, sprightly, spry, whiz*, zealous |
| Antonyms: | disinterested, idle, indifferent, lazy, quiescent, quiet |
* = informal/non-formal usage
| Main Entry: | agile |
| Part of Speech: | adjective |
| Definition: | physically or mentally nimble, deft |
| Synonyms: | active, acute, alert, athletic, brisk, buoyant, bustling, clever, dexterous, easy-moving, energetic, fleet, frisky, limber, lithe, lively, mercurial, prompt, quick, quick on the draw, quick on the trigger, quick-witted, rapid, ready, sharp, spirited, sportive, spright, sprightly, spry, stirring, supple, swift, twinkle toes, vigorous, vivacious, winged, zippy |
| Antonyms: | brittle, clumsy, stiff |
| Main Entry: | alarm |
| Part of Speech: | noun |
| Definition: | warning, signaling device |
| Synonyms: | Mayday, SOS, alert, bell, blast, buzzer, call, caution, clock, cry, drum, flap, flash*, forewarning, gong, high sign, horn, nod, scramble*, scream, shout, sign, signal, siren, squeal, tip, tip off, tocsin, trumpet, warning, whistle, wink, yell |
* = informal/non-formal usage
| Main Entry: | alive |
| Part of Speech: | adjective |
| Definition: | being active, full of life |
| Synonyms: | abounding, alert, animated, awake, brisk, bustling, cheerful, dynamic, eager, energetic, lively, overflowing, quick, ready, replete, rife, sharp, spirited, sprightly, spry, stirring, swarming, teeming, vigorous, vital, vivacious, zestful |
| Antonyms: | dispirited, dull, lifeless, morose, sluggish, spiritless |
| Main Entry: | animate |
| Part of Speech: | adjective |
| Definition: | lively |
| Synonyms: | activated, active, alert, animated, dynamic, energized, gay, happy, spirited, vivacious |
| Antonyms: | discouraged, dull, quiet, shy, spiritless |
| Main Entry: | animated |
| Part of Speech: | adjective |
| Definition: | lively |
| Synonyms: | activated, active, alert, animate, ardent, brisk, buoyant, dynamic, ebullient, elated, energetic, energized, enthusiastic, excited, fervent, gay, happy, passionate, peppy, quick, snappy, spirited, sprightly, vibrant, vigorous, vital, vitalized, vivacious, vivid, zealous, zestful, zingy, zippy |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2012 by the Philip Lief Group.
Cite This Source
Copyright © 2012 by the Philip Lief Group.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
