Search Result for "vigorous": 
Wordnet 3.0

ADJECTIVE (2)

1. characterized by forceful and energetic action or activity;
- Example: "a vigorous hiker"
- Example: "gave her skirt a vigorous shake"
- Example: "a vigorous campaign"
- Example: "a vigorous foreign policy"
- Example: "vigorous opposition to the war"

2. strong and active physically or mentally;
- Example: "a vigorous old man who spent half of his day on horseback"- W.H.Hudson

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3 definitions retrieved:

The Collaborative International Dictionary of English v.0.48:

Vigorous \Vig"or*ous\, a. [Cf. OF. vigoros, F. vigoureux, LL. vigorosus.] 1. Possessing vigor; full of physical or mental strength or active force; strong; lusty; robust; as, a vigorous youth; a vigorous plant. [1913 Webster] Famed for his valor, young, At sea successful, vigorous and strong. --Waller. [1913 Webster] 2. Exhibiting strength, either of body or mind; powerful; strong; forcible; energetic; as, vigorous exertions; a vigorous prosecution of a war. [1913 Webster] The beginnings of confederacies have been always vigorous and successful. --Davenant. [1913 Webster] -- Vig"or*ous*ly, adv. -- Vig"or*ous*ness, n. [1913 Webster]
WordNet (r) 3.0 (2006):

vigorous adj 1: characterized by forceful and energetic action or activity; "a vigorous hiker"; "gave her skirt a vigorous shake"; "a vigorous campaign"; "a vigorous foreign policy"; "vigorous opposition to the war" 2: strong and active physically or mentally; "a vigorous old man who spent half of his day on horseback"- W.H.Hudson
Moby Thesaurus II by Grady Ward, 1.0:

199 Moby Thesaurus words for "vigorous": ablaze, acid, active, acute, afire, aggressive, animated, ardent, armipotent, athletic, authoritative, balmy, beefy, biting, blooming, blossoming, boiling over, booming, bouncing, breathless, brisk, burning, cartilaginous, chewy, clear, cogent, cohesive, cordial, coriaceous, corrosive, cutting, dashing, delirious, doughty, driving, drunk, durable, dynamic, effective, energetic, enterprising, enthusiastic, excited, exuberant, fair, fat, febrile, fervent, fervid, fevered, feverish, fibrous, fiery, fit, flaming, flourishing, flowering, flush, flushed, forceful, forcible, forcy, fruiting, full of beans, full of pep, full-blooded, full-strength, glowing, go-go, going strong, gristly, gutsy, gutty, halcyon, hale, hale and hearty, hard, hard as nails, hard-hitting, hardy, healthy, hearty, heated, hefty, high-potency, high-powered, high-pressure, high-tension, hot, husky, impassioned, imperative, impetuous, impressive, in force, in full swing, in good case, in power, incisive, intense, intoxicated, iron-hard, irresistible, keen, kinetic, lasting, leatherlike, leathery, lively, living, lusty, masterful, mettlesome, mighty, mighty in battle, mordant, muscular, nervous, nervy, obstinate, on fire, operative, palmy, passionate, penetrating, peppy, piercing, piping, poignant, potent, powerful, prepotent, prospering, proud, puissant, punchy, red-blooded, red-hot, resilient, resistant, robust, robustious, robustuous, ropy, rosy, rough-and-ready, rude, rugged, ruling, sensational, sinewed, sinewy, slashing, sleek, smacking, snappy, spanking, spirited, sprightly, spry, stalwart, steaming, steamy, steely, stiff, stout, strapping, strenuous, striking, stringy, strong, strong as brandy, strong as strong, strong-willed, stubborn, sturdy, take-charge, take-over, telling, tenacious, thriving, tough, tough as leather, trenchant, unrestrained, untiring, valid, vibrant, vigil, viscid, vital, vivacious, vivid, warm, wiry, zealous, zestful, zesty, zippy