[1] : The Collaborative International Dictionary of English v.0.48

mettlesome \met"tlesome\, a.
   full of spirit; possessing constitutional ardor; fiery; as, a
   mettlesome horse.
   1913 webster -- met"tlesomely, adv. --
   met"tlesomeness, n.
   1913 webster
see also:
met"tlesomely met"tlesomeness 

[2] : WordNet (r) 2.0

mettlesome
     adj 1: having a proud and unbroken spirit
     2: willing to face danger syn: game, gamy, gamey, gritty,
         spirited, spunky
see also:
game gamy gamey gritty spirited spunky 

[3] : Moby Thesaurus II by Grady Ward, 1.0

82 moby thesaurus words for "mettlesome":
   active, acute, aggressive, agitable, animated, beany, brisk,
   bulldoggish, courageous, dauntless, dynamic, edgy, emotional,
   emotionally unstable, energetic, enterprising, enthusiastic,
   eruptive, excitable, explosive, fiery, forceful, forcible,
   full of pep, game, gamy, go-go, gritty, gutsy, gutty, hearty,
   high-mettled, high-spirited, high-strung, highly emotional,
   impetuous, incisive, inflammable, intense, irascible, irritable,
   keen, kinetic, lively, living, lusty, nervous, nervy, peppery,
   peppy, pertinacious, perturbable, plucky, prickly, red-blooded,
   resolute, robust, sensitive, skittish, smacking, snappy, spanking,
   spirited, spiritful, spunky, startlish, strenuous, strong,
   take-charge, take-over, tenacious, touchy, tough, trenchant,
   vibrant, vigorous, vivacious, vivid, volcanic, zestful, zesty,
   zippy

Mettlesome >> M Words
Mettlesome, definition of term: Mettlesome
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