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adj.
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"
adj.
moving quickly and lightly; "sleek and agile as a gymnast"; "as nimble as a deer"; "nimble fingers"; "quick of foot"; "the old dog was so spry it was halfway up the stairs before we could stop it"
adj.
characterized by intense emotion; "ardent love"; "an ardent lover"; "a fervent desire to change society"; "a fervent admirer"; "fiery oratory"; "an impassioned appeal"; "a torrid love affair"
adj.
engaged in or accustomed to close observation; "caught by a couple of alert cops"; "alert enough to spot the opportunity when it came"; "constantly alert and vigilant, like a sentinel on duty"
adj.
exercising or showing good judgment; "healthy scepticism"; "a healthy fear of rattlesnakes"; "the healthy attitude of French laws"; "healthy relations between labor and management"; "an intelligent solution"; "a sound approach to the problem"; "sound advice"; "no sound explanation for his decision"
adj.
above average in size or number or quantity or magnitude or extent; "a large city"; "set out for the big city"; "a large sum"; "a big (or large) barn"; "a large family"; "big businesses"; "a big expenditure"; "a large number of newspapers"; "a big group of scientists"; "large areas of the world"
adj.
in good health especially after having suffered illness or injury; "appears to be entirely well"; "the wound is nearly well"; "a well man"; "I think I'm well; at least I feel well"
adj.
quick and energetic; "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze"
adj.
showing a fighting disposition; "highly competitive sales representative"; "militant in fighting for better wages for workers"; "his self-assertive and ubiquitous energy"
adj.
unsolicited and resisted by the management of the target company ( used of attempts to buy or take control of a business); "hostile takeover"; "hostile tender offer"; "hostile bid"
adj.
living by preying on other animals especially by catching living prey; "a predatory bird"; "the rapacious wolf"; "raptorial birds"; "ravening wolves"; "a vulturine taste for offal"