vibrant

from WordNet (r) 3.0 (2006)
vibrant
    adj 1: vigorous and animated; "a vibrant group that challenged
           the system"; "a charming and vivacious hostess"; "a
           vivacious folk dance" [syn: {vibrant}, {vivacious}]
    2: of sounds that are strong and resonating; "the men's vibrant
       voices"
    3: of colors that are bright and striking
    
from The Collaborative International Dictionary of English v.0.48
Vibrant \Vi"brant\, a. [L. vibrans, p. pr.: cf. F. vibrant. See
   {Vibrate}.]
   Vibrating; tremulous; resonant; as, vibrant drums.
   --Longfellow.
   [1913 Webster]
    
from Moby Thesaurus II by Grady Ward, 1.0
57 Moby Thesaurus words for "vibrant":
      active, acute, aggressive, animated, brisk, consonant, dynamic,
      energetic, enterprising, enthusiastic, forceful, forcible, full,
      full of pep, go-go, hearty, impetuous, incisive, intense, keen,
      kinetic, lively, living, lusty, mellow, mettlesome, orotund, peppy,
      plangent, pulsing, resonant, resonating, resounding, rich, ringing,
      robust, rolling, rotund, round, smacking, snappy, sonorous,
      spanking, spirited, strenuous, strong, take-charge, take-over,
      throbbing, trenchant, vibrating, vigorous, vivacious, vivid,
      zestful, zesty, zippy

    

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