describes a person or animal that is both spirited and brave à¦¤à§à¦à¦¸à§à¦¬à§ spirited, plucky, rampant, lively, mercurial, mettlesome à¦à¦à§à¦°à¦¹à¦¾à¦à§à¦¬à¦¿à¦¤ zealous, intent, mettlesome, mettled, hot. (of a person or animal) full of spirit and courage; lively. \\"their horses were beasts of burden, not mettlesome chargers\\" synonyms: spirited, game, gritty, intrepid, fearless, courageous, hardy, brave, plucky, gallant, valiant, valorous, bold, daring, audacious, heroic; tenacious, steely, determined, resolved, resolute, steadfast, indomitable. filled with courage or valor For its raid on the Bin Laden\\'s compound in Abbottabad, Seal Team Six has become, for many Americans, the embodiment of mettle. Definition of Mettlesome describes a person or animal that is both spirited and brave Examples of Mettlesome in a sentence My brother is a mettlesome boy whose free-spirit always leads him to some type of adventure. Because of her mettlesome nature, the princess always found her in a situation that would test her bravery. The mettlesome young couple was brave enough to stand up for their love even if it meant leaving their families. Staring at the mettlesome little pup, the owner couldn\\'t believe that his dog had been brave enough to rescue him from a fire. Robin Hood was a mettlesome young man who was brave and spirited enough to take from the rich and give to the poor.