Source : WordNet®

feisty
     adj 1: showing courage; "the champion is faced with a feisty
            challenger" [syn: {plucky}, {spunky}]
     2: irritable and looking for trouble; "too touchy to make
        judicious decisions" [syn: {touchy}]
     [also: {feistiest}, {feistier}]

feistiest
     See {feisty}