Mighty, Nervous, Obstinate, Overstrung, Panicky, Pert, Pertinacious, Perturbed, Plucky, Potent, Powerful, Puissant, Resolute, Restive, Restless, Robust, Rude, Ruffled, Rugged, Saucy, Shaken, Smart, Spirited, Spooky, Spunky, Stalwart, Steely, Stout, Strapping, Strong, Sturdy, Tenacious, Tense, Tough, Troubled, Turbulent, Twitchy, Uneasy, Unquiet, Upset, Vigorous, Agitated, Apprehensive, Beefy, Bluff, Bold, Bouncing, Brash, Cheeky, Cocky, Contemptuous, Crusty, Derisive, Disrespectful, Disturbed, Doughty, Edgy, Excitable, Excited, Fearful, Feverish, Fidgety, Flip, Flippant, Flurried, Flustered, Forceful, Forcible, Forward, Fresh, Frightened, Game, Gamy, Gratuitous, Gritty, Gutsy, Hale, Hard, Hardy, Hearty, Hefty, Husky, Impertinent, Impudent, Irritable, Jerky, Jittery, Jumpy, Lusty