agitable arch beany brash devilish ebullient edgy effervescent elfish elvish emotional emotionally unstable eruptive excitable explosive fiery foolish full of mischief high-mettled high-strung highly emotional impish inflammable irascible irritable jolly knavish lighthearted merry mettlesome mirthful mischief-loving mischievous nervous peppery perturbable playful prankish pranksome pranky prickly puckish roguish scampish scapegrace sensitive skittish sportive spunky startlish touchy trickish tricksy vivacious volcanic waggish